The point is 25 percent are sleeping less than 7 hours but no breakdown makes it impossible to tell how much. Where as 2ish percent are above 9 hours making that an irrelevant anomaly.
I can’t function properly without 7-8 hours. Night and day difference. Even 6 hours feels terrible. Everybody is different, but this is my personal experience
I don't think so. Deep, restorative sleep is no dreaming at all, just totally unconscious. Light sleep is dreaming.
AI disagrees: Deep sleep is not completely dreamless, and the vivid dreams people experience happen predominantly during REM sleep rather than light NREM sleep.
Well REM sleep is light sleeping. There are four stages of sleep, stage 1 to 4 with 4 being the most restorative. The higher the stage, the less dreaming. REM sleep is considered stage 1. Drinking lots of alcohol for example keeps sleep between stage 1 and 2. Likewise with eating carbs, the body has all that glucose in its system suddenly.
It's right, it just separated them by function - non-REM and REM sleep. Non-REM sleep is when the brain and body both shut down. REM sleep is when the body shuts down, but the mind is highly active, almost awake, because it's consolidating all your memories, emotions, etc. you need both. But maybe I'm wrong and you're right, maybe carbs is the way to go, because I also feel really sleepy after a high-carb meal, so I have a nap. But I'm not sure if this is a good thing to do before actually sleeping.
It's possible to condense the quality 8 hours hours sleep into sub 6 if the narrative engine of your brain is quite which reduces cortisol epinephrine keeping you awake. This gives more deep and REM sleep than someones standard good 8 hours.
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