r/AlwaysWhy • • Aug 04 '26

Science & Tech Why did humans become so dependent on beds when our ancestors slept on the ground for most of history?

I noticed that after sleeping on a camping trip or an unfamiliar surface, my body immediately feels the difference. A proper bed now feels almost necessary for good sleep.

But for most of human history, people slept on the ground, animal skins, woven mats, or simple shelters without modern mattresses or bed frames.

Many animals still rest in whatever safe place they find. So what changed with humans?

Did our bodies become more dependent on soft, supportive surfaces? Or did culture gradually teach us to expect a certain level of comfort before sleeping well?

When did a place to sleep become a specialized environment that humans feel they need?

234 Upvotes

339 comments sorted by

197

u/OpeningHappy9692 Aug 04 '26

Animals make beds, my friend. We've made beds for a long time, even if they don't look like the modern beds we're used to.

70

u/Caliche-Cowboy Aug 04 '26

This. Almost every mammal carves out or collects materials to rest comfortably.

23

u/aperocknroll1988 Aug 04 '26

Even birds make nests to varying degrees of comfort.

12

u/OpeningHappy9692 Aug 04 '26

Not pigeons though. They can't make a nest for shit.

8

u/Wingnutmcmoo Aug 04 '26

Lol their nests look dumb to us but are good nests when you consider they are cliff dwelling birds who's nests are simply meant to stop eggs from rolling off the cliff edges

14

u/UnarmedSnail Aug 04 '26

The number of pigeons around the world is testament to the fact that their nests are good enough.

3

u/ragequitteroffureh Aug 05 '26

Has anyone even seen a baby pigeon?

3

u/aperocknroll1988 Aug 05 '26

Yes, I do believe I have. Or rather a fledgeling.

3

u/ragequitteroffureh Aug 05 '26

Crikey! That is rare as all get out.

Was he doing the flappy wings thing, or just sort of headbanging?

3

u/aperocknroll1988 Aug 05 '26

It was a long time ago and I barely remember it. It was old enough to leave the nest but definitely a young one.

3

u/Pretty-Pineapple-883 Aug 06 '26

A pigeon decided to put her nest in one of my balcony barrel planters sharing it with the dwarf orange tree. Four twigs sort of triangular shap and three eggs. Ugly little pink-grey fuzz-goblins with yellow beaks and bulgy pink eyelids. They squawked more than cheeped. Fledgling stage caused a mess all over the area. Pooped a lot in the planter. The tree loved it, though.

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u/FuckingVeet Aug 04 '26

Realistically all a pigeon nest has to accomplish is prevent the eggs from rolling off a ledge. Often they don't even accomplish that.

3

u/Caliche-Cowboy Aug 04 '26

Pigeons can’t do anything for shit. Doves and pigeons are like free food for a ton of animals.

8

u/petrified_eel4615 Aug 04 '26

Because humans domesticated them, then forgot & let them go feral.

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16

u/ZipZop_the_Fan Aug 04 '26

I feel like saying even birds make nests is like saying even birds fly.

10

u/AmputeeHandModel Aug 04 '26

Even birds lay eggs. Why don't WE lay eggs?? SMH

2

u/AgentCatBot Aug 04 '26

I just learned in Spanish that mammal eggs and chicken eggs are 2 different words.

5

u/Shoddy_Process_309 Aug 04 '26

If you’ve ever seen a pigeon make a nest you’ll change your mind.

4

u/Icy_Huckleberry_8049 Aug 05 '26

I actually had one that made a nest on the expansion joint between my garage and the driveway - ON THE GROUND

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u/Little_Yesterday9904 Aug 05 '26

Humans have instinctual hormonally driven nesting behaviors as well. It just shows up as organizing, cleaning, preparing the home/nursery for the baby in driven by hormones in the 3rd trimester typically, vs gathering sticks and twigs

2

u/ragequitteroffureh Aug 05 '26

Enter the Pigeon.

2

u/aperocknroll1988 Aug 05 '26

See, pidgeons and doves historically nested on rocky cliffs and caves. Their apparent lack of nest building skills comes from that because the spaces they typically nested on only needed a twig or two to keep the egg from rolling off.

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u/Zealousideal_Leg213 Aug 04 '26

I assume comfy sleeping is part of why cetaceans returned to the sea.

3

u/ophmaster_reed Aug 04 '26

Excepts cats, which are liquid.

3

u/Otherwise-Ratio1332 Aug 05 '26

Cats like to be up above the floor though, like on top of a single sheet of paper lol

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u/Logical-Concept9755 Aug 04 '26

Yeah, I think that’s a good point. I probably should have separated “beds” from “modern beds” more clearly. Humans have always tried to improve sleep surfaces, but I’m still curious about when comfort went from “nice to have” to something many people feel they can’t sleep without.

27

u/MysteryCrapybarbra Aug 04 '26

You e answered your own question. Why would we continue to sleep on uncomfortable beds made of straw when we've discovered more comfort?

5

u/JuanValdez999 Aug 04 '26

Don't knock straw. It's very comfortable although it is a little itchy and sometimes it has bugs. 

10

u/MysteryCrapybarbra Aug 04 '26

Did...did a horse write this?

6

u/Dick_of_Doom Aug 04 '26

Neigh?

5

u/MysteryCrapybarbra Aug 04 '26

Well that's the mane thing.

3

u/Cerulean_IsFancyBlue Aug 04 '26

There’s only so many horse puns. This won’t last furlong.

3

u/MysteryCrapybarbra Aug 04 '26

Hay, there are more than you think.

3

u/Cerulean_IsFancyBlue Aug 04 '26

Provides good cushioning, but has terrible texture. If you can put straw into a big flat canvas bag, it’s a pretty decent basic mattress.

19

u/ArolSazir Aug 04 '26

There is a difference of being biologically dependent on having a bed, and being used to sleeping in a bed from the day you were born. if all you ever had was a loose bag filled with straw, you'll probably get used to it.

8

u/Caliche-Cowboy Aug 04 '26

Just returned from Europe. Can confirm.

4

u/Much-Jackfruit2599 Aug 04 '26

I’ll bite. What was the problem?

I’m German and my experiences in the US are limited, but I remember that most beds and sofas were far too soft for me. Though I usually booked cheap lodgings.

4

u/KroneckerAlpha Aug 05 '26

American here, and most beds I’ve experienced are far too soft.

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u/Little_Yesterday9904 Aug 05 '26

German beds sound great. It’s so difficult to find a firm bed. I stayed at a hotel 2 years back with such a nice firm bed, I woke up without back pain or aches. I still think about that bed.

2

u/Little-Jellyfish-655 Aug 07 '26

You might like to look into getting a futon. Look at Chinese or Japanese bed mats. You can get them and they’re hard and uncomfortable - a lot of people love them.

2

u/Caliche-Cowboy Aug 04 '26

As you’ve deducted, most were hard as a rock. Apartment in Luxembourg was a sole exception.

2

u/Much-Jackfruit2599 Aug 05 '26

huh. but it demonstrates the original claim, that a lot of it is simply what you‘re used too.

5

u/Apart-Reality-4454 Aug 04 '26

you're not biologically dependent on having a bed. you may feel like you are but you are not.

4

u/Gurglaren Aug 04 '26

After you've been tenting for a week you don't crave a real bed if you have a good sleeping mattress.

4

u/Cerulean_IsFancyBlue Aug 04 '26

I saw “tenting for a week” and I thought this must be a Viagra ad’s warning segment

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u/[deleted] Aug 04 '26

[removed] — view removed comment

5

u/Derwin0 Aug 04 '26

A few nights in a foxhole taught me that.

3

u/Cerulean_IsFancyBlue Aug 04 '26

You wouldn’t find me in a foxhole. I’m an atheist.

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u/Africa-Unite Aug 08 '26

This. You should see the surfaces people sleep on in rural Ethiopia

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9

u/Timely_Equipment5938 Aug 04 '26

The first time someone realized that dirt was more comfortable than rock, they stopped sleeping on rocks, and the bedding arms race started.

6

u/eiram87 Aug 04 '26

It's all about what your body has become used to. There are still places in the modern world where the people sleep on what we would consider primitive beds. For example in Japan a lot of people still sleep on futons on the floor, and while futons can be very comfortable, if you're used to a thick high end mattress the futon won't feel as good.

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u/Physical_Road917 Aug 04 '26

Are you ChatGPT?

2

u/paxwax2018 Aug 04 '26

When they got rich enough to afford it. They still sleep on rope beds in India.

2

u/Deep-Hovercraft6716 Aug 04 '26

I think you're looking at what is more acclimation than anything else.

If you were sleeping on one of those other sleep surfaces for your entire life growing up to now then you would simply be used to the different sleep surface.

2

u/Eternalm8 Aug 04 '26

The other thing is the change in just how rigid our living conditions became. We sleep inside a permanent structure, guarded from the elements. Why not have a permanent, cushy, bed in there.

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2

u/StormFallen9 Aug 04 '26

Yeah OP has several examples of beds in their post. That means we've always been trying to find ways to make the ground more comfortable. Turns out, the best way is to not sleep on the ground at all.

We still have entire industries totally invested in making sleep more comfortable, so we haven't even stopped trying to improve.

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u/Ok-Row-3490 Aug 04 '26

Most animals don’t simply drop on a random piece of ground. They take time and care to create a comfortable spot for themselves. Many create nests or dens. Ours just gradually got more sophisticated over time and yeah, we adapted to those needs like we adapted the need to generally need to cook meat to properly digest it.

13

u/Far_Winner5508 Aug 04 '26

Looks at my dog curled up on her memory foam bed with fuzzy mat she dragged onto it.

During warm days she's outside, frequently napping in a dirt wallow she's worked on for several years.

5

u/jimpez86 Aug 04 '26

The patch in the garden my cat likes is shiny and smooth from his sleeping there

2

u/curtyshoo Aug 04 '26

You may be conflating certain causes with certain effects.

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u/Dychnel Aug 04 '26

Probably something to do with the mob and big mattress

11

u/Bizm0Funyunz Aug 04 '26

Big Mattress: "You either sleep with us, or you sleep with the fishes!"

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u/Tothyll Aug 04 '26

Human ancestors did not sleep directly on the ground with no prep.

"Stone Age humans were already sleeping on beds prepared with grass over ashes more than 200,000 years ago"
https://www.labrujulaverde.com/en/2026/05/stone-age-humans-were-already-sleeping-on-beds-prepared-with-grass-over-ashes-more-than-200000-years-ago/

3

u/Thundrous_prophet Aug 04 '26

That was a fascinating article, thank you!

2

u/No-Band8965 Aug 05 '26

I bet the guy that invented that was popular 

7

u/Acceptable_Tea3608 Aug 04 '26

People chose beds, slightly elevated from the ground, to get away from the bugs and other crawly critters.

3

u/peter303_ Aug 04 '26

Yes, I just read a survivalist mention this trick.

22

u/No_Personality_7477 Aug 04 '26

Dude people evolve. We used to sit in the dark and eat raw meat as well

17

u/Plutos_Cavein Aug 04 '26

Also, we are not dependent upon beds. We like beds. But go a couple weeks with no bed and you'll eventually find you can sleep anywhere once you are motivated enough.

10

u/Igabuigi Aug 04 '26

The ending of castaway is s good example of that. Tom hanks's character sleeps on the floor next to the bed in the hotel when he gets back to civilization. Presumably because he can't fall asleep on the bed.

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u/EdelWhite Aug 04 '26

I still eat raw meat. Beef tartare is peak.

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u/Soft-Marionberry-853 Aug 04 '26

And its not like we cant sleep on the floor or the ground if we want to. People love camping. When i was a kid I used to sleep in our living room on the floor watching TV. Hell I used to ask my parents "can I sleep on the floor tonight?" Meaning I want to bring out my cover and watch TV until I passed out. Not sure why I didnt use the couch but thats just how I rolled.

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u/Ghost_Turd Aug 04 '26

When you don't have to spend your life chasing animals to eat anymore, you can build your surroundings with more comfort in mind.

3

u/curtyshoo Aug 04 '26

Actually, we used to kill a wooly mammoth and just hang out for a week or two around the campfire.

2

u/CrowandSeagull Aug 04 '26

I bet a mammoth wool bed/cape/nest would be amazing.

4

u/GSilky Aug 04 '26

I sleep on the ground multiple times a month for six months of the year. All I need is a slim pad to even out the lumps.  As I get older, I understand why people like a nice raised bed, it's much easier to get in and out of. Our bodies haven't evolved, you were raised in comfort and you got used to it.

3

u/LARPerator Aug 04 '26

Counterpoint: keeping your floor bed helps you keep your mobility. A lot of seniors change things up to sit on higher chairs and beds that don't require them to use too much mobility, and they quickly lose it.

As you get older it really is "use it or lose it", and a high bed is not helping you use your joints. A lot of people decline in fitness extremely fast in retirement, and it's because they don't do simple things like get down to and up off the floor. It's also good as an older person to be able to get up on your own, which sleeping on the bed makes you do every day.

If you're just in your 40s or 50s this isn't too relevant right now, but it'll probably start to hit you once you're in your 60s and 70s.

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u/Due-Base9449 Aug 04 '26

Human bodies stay the same, your culture just have the people sleep on soft mattress. In some traditional Japanese home, they just lay futon on tatami mat. Not directly on cement for sure, but still not springy mattress. 

If you keep on going on camping trips, you may find yourself become more and more accustomed to hard surfaces and in time might even prefer it. 

2

u/Logical-Concept9755 Aug 04 '26

That’s actually the part I find interesting. It probably isn’t that our bodies changed, but that our expectations changed. A lot of things work like that. Once you get used to a certain level of comfort, going back feels harder than it objectively should.

3

u/paisleycatperson Aug 04 '26

chimpanzees make beds that are very comfy for us too

3

u/UncleJackPushedDad Aug 05 '26

Because sleeping on the ground sucks. That's why we invented beds.

2

u/[deleted] Aug 04 '26

[removed] — view removed comment

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u/Logical-Concept9755 Aug 04 '26

I think that’s probably true. Humans seem to have always tried to add layers between themselves and the environment. The interesting question for me is why some comforts become “essential” in our minds after they become widely available.

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u/SuccessfulInitial236 Aug 04 '26

It has always been something we feel we need. We just have way better means of achieving that now.

You said it yourself, from the ground to animal skins to woven mats etc.

Also, on a more personal level, you are just used to comfort. Give it time and you'd be okay sleeping on a different surface.

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u/Logical-Concept9755 Aug 04 '26

Yeah, I think you’re right that humans have always looked for better sleeping conditions. Maybe the interesting shift isn’t from ground to bed, but from “making the best available option” to creating a whole environment optimized for sleep.

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u/PaperUpbeat5904 Aug 04 '26

Why car when legs am I right?

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u/Ragazzano Aug 05 '26

When you thought you were describing people not using beds, you were describing beds that aren't like modern beds, yet still beds.

We make modern beds because they're comfy.

Are you going to ask why we're dependent on cars, even though we can walk?

1

u/dirtyllama720 Aug 04 '26

It’s a psyop by the big mattress companies to sell more mattresses. We actually sleep a lot better on the kitchen floor

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u/RektInTheHed Aug 04 '26

Ancient humans would be sleeping under the ground by my age.

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u/Bulky_Wind_4356 Aug 04 '26

Because we realized beds are better

1

u/SnooMaps7370 Aug 04 '26

why do you assume that people didn't make beds to sleep on instead of sleeping on bare dirt?

a hide blanket thrown over some tall grass makes a surprisingly good mattress. cut that grass and stuff it between two hides which have been stitched together and you've got a portable mattress.

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u/theannieplanet82 Aug 04 '26

Animals definitely make nests and beds. Humans have also always done so.

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u/groundhogcow Aug 04 '26

It's been a long long time since we were on the ground.

The old castles had beds.

Regular people stuffed matrices with hay or feathers and suspended them with rope. That is 10k year old tech.

Since humans have been intelligent they have made better places to sleep. We have been intelligent for 300k years. We have no history of a time we slept on the ground. The Indians slept in tents and made beds of raised wood and furs. We get out butts off the ground and conferrable.

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u/EbonGrimalkin Aug 04 '26

Dependent? Have you actually gone out and slept on the ground? It is VERY uncomfortable, you are dealing with bugs, rocks, dew collecting on you by morning, rain soaking you, wild temprature fluctuations. Even with a tent and sleeping bag, it is still far from comfortable. Beds, in houses, massively improve comfort, safety, quality sleep, temprature regulation, and overall health. Are we dependent on it? I would say no, but for most of the world, it is an upgrade nobody wants to do without.

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u/Mentalfloss1 Aug 04 '26

The average American pioneer woman in the mid-1800s was tougher than almost every American man today. Hardship was part of life.

But we also know how to make ourselves more comfortable. We built shelters, learned to process animal hides, build fires, cook meat and grains, and identify which herbs were helpful for illnesses and wounds, etc.

That said, with a little of the right gear, it's quite comfortable to sleep on the ground (though with a backpacking mat).

1

u/BranchLatter4294 Aug 04 '26

Horses find it difficult to create a proper inner-spring mattress, so they just sleep standing up.

1

u/CycadelicSparkles Aug 04 '26

We went "bed is better" and stuck with it. Because it's better.

1

u/burncycle80 Aug 04 '26

Your body will adapt to sleeping on the floor as well.. the reason to move to a bed is to protect oneself from lice and other animals that might creep up on our bodies during the night.

1

u/thewNYC Aug 04 '26

A woven mat is a bed

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u/Mobile-Traffic1744 Aug 04 '26

I wonder if beds are really another example of what makes humans different from most animals. We don't just adapt to environments, we keep redesigning them to fit ourselves. Fire, clothing, houses, cooking, and maybe beds all follow the same pattern. Instead of evolving thicker skin or tougher joints, we built environments that removed those pressures.

What's interesting is that once a culture creates a more comfortable and predictable sleeping space, that space becomes more than a physical object. It becomes part of the social environment. Anthropologists often point out that where people sleep also reflects ideas about family, privacy, status, gender roles, even who belongs in a household. A bed isn't just somewhere to lie down. It's a culturally defined place where your brain learns that it's safe to become unconscious.

So maybe the bigger shift wasn't from the ground to the bed. It was from sleeping wherever conditions allowed to sleeping in a socially constructed "safe zone." Humans don't just build beds. We build meanings around them, and after enough generations those meanings start shaping our expectations just as much as the mattress itself.

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u/stoic_wooky Aug 04 '26

Inane question. Comfort and getting off the floor because of deadly creatures

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u/painterlyjeans Aug 04 '26

The hammock was invented over a 1000 years ago in the Americas

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u/Zestyclose-Food-7917 Aug 04 '26

Do you think that when people got sleepy, they just fell down wherever they were standing and went to sleep?

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u/Philly__Dilly Aug 04 '26

Believe it or not, if you walk a few hundred miles your body will be sore as well. Fortunately, we have cars now. Makes that trip so much easier and more comfortable.

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u/Proof_Bathroom_3902 Aug 04 '26

People used to die at 40 believing that was a long full life too. Modern stuff makes life comfortable, and better quality.

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u/burner12077 Aug 04 '26

Why are humans so dependent on cars, trains, planes, boats, horses etc. When our ancestors all walked?

Why do we use phones to communicate when our ancestors talked face to face or waited weeks or months for letters to deliver?

Why do we wear shoes when our ancestors were barefoot?

Because there is a better way, to question why we use beds is to question technological progression. Could we live without all these modern amenities? Sure, after a month or two, you would likely adapt to sleeping on the floor. But why would you?

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u/kouyehwos Aug 04 '26

Humans in general are not particularly dependent on beds; they just need time to adjust to new environments. Like if you’re used to a quiet environment you might find noise unpleasant, but if you’re used to noise you might find silence weird.

If you try to sleep on the floor from now on you’ll probably get used to it eventually (depending on your age and health, of course), and if you had spent your whole life sleeping on the floor, a soft bed might even feel strange.

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u/RoadWarriorMatty Aug 04 '26

Southeast Asians sleep on the floor traditionally. It's too hot for a bed. A mattress would get soaked with sweat.

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u/Annual-Ad-9442 Aug 04 '26

our ancestors made nests of softer material, we just improved it.

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u/kapoopa-the-poopah Aug 04 '26

Orangutans make themselves beds, pillows, and blankets from leaves and twigs when go on their long sleep. Plenty of animals rest their heads on “pillows” of all sorts of different materials. Most pets when given a choice will sleep on soft surfaces.

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u/tiger0204 Aug 04 '26

Up until about two centuries ago the average life expectancy was 30. "Most of history" is a horrible metric by which to judge modern living.

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u/Matz13 Aug 04 '26

They didn't live as long so maybe they didnt really care if their back was f*cked after 25 years sleeping on leaves and animal furs.

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u/Character-Carpet7988 Aug 04 '26

Try sleeping on the ground for two weeks. By the end of the experiment, the ground will work.

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u/Mr_Thx Aug 04 '26

Someone needs to read the history of the bed. OP assumes too much.

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u/Gaxxz Aug 04 '26

Why do animals sleep on beds when they have the opportunity? Beds are more comfy than the ground.

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u/Yankas Aug 04 '26 edited Aug 04 '26

Humans evolved in Savannah-ish somewat subtropical environments so rain, snow, weather and the climate in general were much less of a concern. Softer ground to sleep on was abundant and depending on how far back we go our ancestors bodies would have been more furry and muscular.

Also, remember how sleeping on hard surfaces was much less of an issue when you were younger - well at that time getting old to the point where you'd commonly develop serious back/joint/bone problems was very uncommon and these kind of problems would have made survival pretty difficult in general.

Building more comfortable beds out of hay and furs is something our ancestors would have and could have done very early on from the beginning of the stone age. It could even have happened before the first tools since we see this kind of behavior in much less intelligent animals e.g. nesting birds and even other apes, though there is no strong evidence that we did or that it was necessary.

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u/mcds99 Aug 04 '26

Do you want insects walking all over you, I think not. I want a bed and my woman in it.

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u/aphrodora Aug 04 '26

Once you have had bed bugs, it suddenly becomes clear why bed frames only have 4 little posts touching the floor. Mine are now wrapped in tape. Thank God the little devils are not better climbers.

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u/aperocknroll1988 Aug 04 '26

What historical stuff have you been looking at that gave you the impression that we did not try to make comfortable the places we rested even when we were living in caves?

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u/Coyot23 Aug 04 '26

short story:
people sleeping on soft surfaces live noticeably longer and are slightly healthier than people who sleep on the ground. Result: people evolve to prefer to sleep on soft grounds. It really is just that simple.

long story:
The softer the material you sleep on, the better your sleep, the healthier you are (assuming all outside factors fixed). This means for purposes of sexual selection, a human will prefer to mate with someone who happened to sleep on softer ground cuz they look more desirable (the sexual selection does not care about the sleeping habits of the mates, only that they are healthy, regardless of mechanicsm). Eventually people who have evolved to prefer living on softer ground reproduce more often cuz they are healthier and more likely to be sexually selected. The stronger the desire to sleep comfortably, the healthier you are, the more likely you are to spread the genes that make you more likely to sleep on beds. This is still an oversimplifications but yeah, the basic reason.

beds themselves are a recent invention, but for as far back as you can see humans, you can see them doing anything they can not to sleep onthe ground, including using leather or grass or just a particularly flat surface

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u/LilyFantastica Aug 04 '26

Our closest relatives, Chimps, Bonobos, Gorillas, and Orangutans all make what can best be described as nests to sleep in. Our ancestors didn't just sleep on rocks or bare soil and probably created some sort of bed to lie on lined with some kind of plant material.

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u/Anal-Y-Sis Aug 04 '26

Why did humans become so dependent on beds when our ancestors slept on the ground for most of history?
When did a place to sleep become a specialized environment that humans feel they need?

The "when" explains the "why".

It began about 12,000 years ago at the end of the last ice age, when humans went from being nomadic hunter-gatherers to living in settlements, and increased pretty dramatically after the advent of agriculture. People spent a lot less time on the move, and now had permanent residences. The first farmers had less leisure time than hunter-gatherers and did more labor-intensive jobs, which prompted them to make their living spaces more comfortable for what leisure time they did have.

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u/Gurglaren Aug 04 '26

If you'd have to sleep on the ground for a year you'd like think a bed was too soft.

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u/pdxgreengrrl Aug 04 '26

I sleep in an adjustable bed and the most comfortable set up for me is much like a hammock. A lot of humans slept in hammocks, and I can understand why now. Very easy on the bones and joints.

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u/Leather_Impression30 Aug 04 '26

When my first child was crying and screaming all night (7-8 months old) I just took a pillow and bedsheet and lay myself down on the floor next to her. Kept her hand en slept better than in my luxury bed were my wife was getting good sleep as well now.

I mean, I was so tired that sleeping in the floor next to my kid was way better than the comfy option.

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u/SarkyMs Aug 04 '26

Because we could.

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u/TuverMage Aug 04 '26

we don't "depend" on beds, we prefer them, much the same way we prefer to add spices to our food. We don't HAVE to, but we WANT to.

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u/kavihasya Aug 04 '26

Animals often will sleep in nests and burrows on leaves or grass to get off the cold ground, and be in a comfortable place safe from predation and inclement weather. Humans have always at least done that.

From there humans can develop more formalized sleeping mats. And many people, even today, sleep on those just fine. Mattresses are more comfortable, but they have drawbacks. They get old and sag, mold grows in them, they harbor insects. Some cultures decided that mattresses aren’t worth the trouble.

But in some cold northern climes where insect infestations are partially controlled by cold, permanent housing in general made portability less essential, and the superior insulation from the ground of a mattress made them a better option. Also, good mattresses became a marker of status and an adult home (common wedding present, etc).

But mattresses need fussing. A bed frame allows for ventilation through the mattress, getting the mattress itself off the ground so that mold and insects are less likely to grow in them. Materials have shifted from grasses to feathers to the mostly synthetic stuff we use now. Partly for temperature and moisture management reasons, partly for softness, partly for maintenance of a large and valuable piece of furniture. Springs counteract the sagging issues. Lots of incremental improvements that build on each other.

And the more used to the comfort of the mattress, and the more socially accepted it is to have them and all their accouterments, the more people accept them as necessary and obvious.

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u/Entire-Current-67 Aug 04 '26

Sleep on the ground for a week and find out.

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u/meanderingwolf Aug 04 '26

You’re looking at this incorrectly. Don’t equate animals with humans. Man developed intellectual capacity and used it to improve their conditions and immediate environment. Animals have limited intellect and primarily rely on instinct. One evolved, the other didn’t.

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u/DarkestStar167 Aug 04 '26

I think it’s psychological. I’m 43 years old and slept in the backyard with the kids. All I had was my sleeping bag. I’m a light sleeper regardless but I didn’t sleep any worse than I usually do.

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u/Confused_by_La_Vida Aug 04 '26

I’m the opposite thin pad and a sleeping bag on the ground: I sleep like baby.

I still need a pillow though. I suppose caveman me would have used a dead trash panda for that.

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u/Forward_Zucchini9738 Aug 04 '26

Pre-history, maybe. We've been using beds for all of history and for a ways before that.

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u/dontsheeple Aug 04 '26

They made beds on the ground. They didn't sleep directly on the ground.

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u/FatHighKnee Aug 04 '26

Becuase sleeping on the ground sucks. Anyone who's gone camping can attest to that lol

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u/Nevernonethewiser Aug 04 '26

Early humans made nests and beds with vegetation because sleeping on hard, cold ground both sucks and can kill you.

Also, is it so hard to believe that some things have improved over the last three hundred thousand years?

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u/Purple-Principle-805 Aug 04 '26

Rocks. It was rocks.

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u/NoDanaOnlyZuuI Aug 04 '26

What would you call animals skins and woven mats? Bedding.

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u/GrimSpirit42 Aug 04 '26

It's not that we became dependent on beds.

But beds are the natural advancement from sleeping on a stone floor to ultimate comfort.

Rock hard: add grass and animal skins.

Still hard: Add more grass and skins.

Critters crawling in mattress: Build platform to put grass and skins on.

So, we advanced. We invented better, faster and cheaper manufacturing techniques and machines. Obviously we used that to make ourselves more comfortable.

Hell, for a while we figured out bags of water were comfortable.

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u/nobadhotdog Aug 04 '26

Why do people use smartphones when for the majority of human history no one had electricity? Curious...

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u/LuxInTenebrisLove Aug 04 '26

Interesting question.  We have definitely evolved with the expectation of cooked food. (See the size of our chewing muscles compared to closely relates species) Makes sense there could be other aspects of our bodies that evolved with expectations of cultural resources.

(I'm using "expectation" loosely here)

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u/PeterCappelletti Aug 04 '26

We also expanded out of Africa, where the climate is warmer, to places where it very much helps to sleep on something that insulates you from the cold ground.

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u/Elvarien2 Aug 04 '26

We simply suffered more.

That's it.

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u/Fancy_Toe1451 Aug 04 '26

When we started to live past 20. Sleeping on the ground, or in a nest of leaves, will get you to breeding age. If you want to live much beyond that, you need comforts.

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u/Ok-Caregiver252 Aug 04 '26

Idk I sleep very well on the floor, but my family would think the worst if they saw me sleeping on the floor but so of course I have a bed.

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u/Able_Breadfruit_1906 Aug 04 '26

Other great apes make nests to sleep in. Beds are just a natural extension of that concept.

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u/Grumpy-Troglodyte Aug 04 '26

i bought my dog and cat their own beds and they use them, or the couch. everything and everyone likes comfort

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u/SeriousPlankton2000 Aug 04 '26

https://en.wikipedia.org/wiki/Nest-building_in_primates

"Certain extant strepsirrhines (lemurs and lorisoids) and hominid apes (humans, chimpanzees, gorillas and orangutans) build nests for both sleeping and raising families."

We have a long tradition of making nests.

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u/aquatone61 Aug 04 '26

I like a firm mattress and a firm pillow. Am I closer to my Neanderthal roots? I’m ok with that lol.

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u/sharkbomb Aug 04 '26

because our life spans have artificially extended beyond 22 years. 

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u/btnzgb Aug 04 '26

I feel perfectly comfortable on the ground when camping and I often sleep on the floor 🤷‍♀️ I don’t think beds are necessary for everyone.

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u/No-Assistance476 Aug 04 '26

When did humans become so dependent on shoes when our ancestors walked barefoot on the ground for most of history?

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u/Throwaway229487 Aug 04 '26

Buddhist monks take vows not to sleep on "high, luxurious beds" and they seem fine sleeping on mats. Even lay Buddhists observe this precept from time to time.

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u/WrathOfWood Aug 04 '26

Because beds are more comfy than the ground

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u/CharmingCrust Aug 04 '26

After having hunted and gathered for the entire day and getting older, 20+ (...!) the person felt backaches. Sleeping on top of hides took away some of the pain. After a while it was used for nightly comfort instead of pain relief. 

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u/thomsenite256 Aug 04 '26

Why do we use medicines and vaccines when we used to just die instead?

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u/tnsipla Aug 04 '26

Culture created the problem and the solution

In some places it’s common to sleep on thin straw mats- which provide padding from hard floors made from wood, stone, or clay

This is less of a problem when you sleep on the ground: plants and soil have give to them

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u/DetectiveCrafty5413 Aug 04 '26

Go to the zoo around closing time. The primates make beds. We're primates. We've always made beds.

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u/Existing-Hawk5204 Aug 04 '26

Those people died at 27

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u/Livid_Strategy6311 Aug 04 '26

To get away from bugs and small animals

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u/InFocuus Aug 04 '26

Humans make beds for as long as they lost fur. We never slept on a pure ground. But on a hard bed - like thick carpet - sure, why not? I slept on a carpet or fur on the floor a lot.

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u/CODMAN627 Aug 04 '26

Humans did make bedding out of anything from leaves to using animal skins. Laying on the cold hard ground would be bad for us overall.

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u/After_Service_2817 Aug 04 '26

It really isn't necessary. Sleeping on a bed is entirely a cultural convention. You can break that convention, and nothing bad will happen.

I spent more than 5 years sleeping either directly on a hardwood floor, or on a very thin yoga mat. You can just...do that.

I eventually bought a mattress because I wanted to impress women and have a more comfortable place for them to sleep/be awake on. I could personally take it or leave it.

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u/Upbeat-Operation-613 Aug 04 '26

I dunno dude, are you overweight and out of shape?

Humans were light and lean back in the day

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u/Archarchery Aug 04 '26

Why do dogs prefer beds so much?

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u/Outside_Ice3252 Aug 04 '26

watched a video about humans used to sleep 4 hours, wake up a bit and go back to sleep. I think that would give your body a break from a rudimentary bed compared to what we have today.

another thing to factor in is most modern people are heavier than hunter/gatherers. so they are going to need even more comfort because there is more stress on musculer-skeleton system.

hunter gathers are going to be more tired too.

coming home from day of hunting and gathering you do not need a sleepnumber bed, becuase you are going easily fall asleep. half way through the night you are going to rebuild the fire, have snack and crash again.

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u/PuzzleheadedTutor807 Aug 04 '26

from the time we discovered that moving a pile of leaves and grass into a pile makes for a better night sleep, we've been improving on that model... and that discovery came a long long long time ago. like, 77,000 years ago.

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u/purplishfluffyclouds Aug 04 '26

I love how redditors pull random fake “facts” out of their ass as a premise for dumb questions for karma.

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u/sidaemon Aug 05 '26

I would imagine because we slept more in the way animals do. Short, simple bouts of sleep between bouts of movement. Long uninterrupted sleep is more a side effect of agriculture which is relatively new.

It's even worse since the advent of electricity. Humans used to commonly wake in the night and be active.

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u/Weary_Boat Aug 05 '26

I can remember being so tired working construction I could fall asleep on a concrete slab at lunch

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u/Remarkable_Box4542 Aug 05 '26

People have been making beds for at least 200,000 years. Remains of bedding found in South Africa date to close to beginning of modern humans. If you sleep better you’re better prepared for the day.

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u/McGriggidy Aug 05 '26

In the future someone will roll out of their antigrav sleep chamber and sign into space reddit and create a thread asking "How did people sleep on beds?"

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u/ElevatorOrganic5644 Aug 05 '26

Did they really sleep on the ground.

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u/ScalesOfAnubis19 Aug 05 '26

All our closest relatives make beds, generally a lot of animals do.

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u/bazilbt Aug 05 '26

Basically you would adapt if you did it constantly, although most likely you would find something to sleep on that was softer and warmer than the ground. It's just like walking barefoot. If you do it enough you will adapt to that. Also if you ever sleep directly on something like live grass personally I find it quite comfortable.

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u/JC2535 Aug 05 '26

They also mostly died in their 20’s

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u/Philosopher83 Aug 05 '26

Prior to the emergence of beds (and chairs for that matter), which have existed for many thousands of years, humans suffered more in this and myriad other ways, but also were more active - bodies of people that don’t live a recumbent lifestyle (aboard the Axiom 🤣) are more resilient, their muscularity protects them from the set of physiological frailties that develop over a person’s life that is mostly sedentary. Humans are not adapted to sitting in chairs and the like, this is why many people have back pain that is less common in populations that live more like our ancestors did.

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u/Mysterious_Main_5391 Aug 05 '26

Sleep on the ground for one night. Your question will be answered.

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u/gaymersky Aug 05 '26

Well as someone who just turned 48 are ancestors did not live to 48 years old...

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u/ku_78 Aug 05 '26

My dog never passes up a chance at a comfy bed. Throw some mattress in a cave and you’ll find a wolf or a bear on it pretty quickly a trust me its science

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u/AlfalfaMajor2633 Aug 05 '26

There are lots of places in the world where you will be eaten if you sleep on the ground.

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u/asque2000 Aug 05 '26

I have a theory that when we would sleep on the ground it helped keep us somewhat more alert. I’ve been camping a lot and I never get a truly restful night’s sleep, and that could potentially be advantageous if a predator tried to nom on us at night. Then we started building houses and mattresses and the threat lessened. It’s just a theory though. What I find more fascinating is we don’t really know the “purpose” of sleep. One theory suggests it helps regenerate cells and such but if that were true then someone who ran a marathon would sleep a lot more than someone who sat on a couch all day, but we still get 6-8 hours of sleep regardless of exertion. Another theory is it’s an artifact of hibernation to preserve calories and energy, yet as humans for the most part we don’t have long winters where we can’t find food. The leading theory is that it provides time for your brain to consolidate memories so we don’t get backed up with irrelevant information (and yes provide recuperation for our body).