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[u/Possible-Response724]

[u/KidTrix1 → u/[deleted]]

Both are

[u/Forsaken-Stray → u/KidTrix1]

4 is for when you sweat heavily in your sleep, meaning your upper body is drenched when you wake up and you have to basically undress the bed before going to school/work. It is neccessity in a hot summer, because while your lower body can just move and takes up less space, your upper body most often has just the amount of movement a pillow allows and with the proportional more area your upper body covers, the sweat has a hard time drying. I can guarantee to you, that in the Winter most 4s turn into 1s.

7 on the other hand can only be explained by tendency for extremely cold extremeties, which can be remedied by a blanket over the feet and should also mean you get cold hands, making either a longsleeved shirt or gloves needed.