No. But different people have different sleep requirements.
It is normally 8-10 hours for normal person
2 days nonstop is 48 hours. However if you're talking normal sleep. I would say 16 hours in 2 days is about normal.
Under normal condition 6 to 8 hours sleep is sufficient. Unless one is in comma or under some drugs, 24 hours sleep is not possible.
7-8 hours a night.
About 7-8 hours is the normal healthy amount of sleep.
8 hrs
4 hours
You need 8 hours of sleep, and you have to be in deep sleep at 1-4 a.m.
4-9 hours of sleep
No, their average sleeping hours is 3-4 hours of sleep per day.
WW1 soldiers got about 4 hours sleep a day.
Sleep requirements vary with age. The average best sleep for a normal adult is seven and one-half to eight hours.