Most adults require 6-8 hours of sleep per night, with few functioning well on 4 hours.

“Most people need 7-8 hours.”

“Some adults, however, do just fine on 5 hours (consistently).”

“Some people can do just fine on four hours of sleep per night, but they are rare. Most need 6-8 after teen years.”

“People’s sleep needs vary but 75-85% need 6-8hrs per night (ideally).”

“So if I were to throw out a number, I would say for most people, that is for 95% of people out there, getting at least six hours of sleep per night, at least, and ideally more like seven or eight is going to be the goal.”

“Under The Heading of sleep it's safe to say that most people need between 6 to 8 hours of sleep per night some people can get away with five some people need as much as nine or 10 certainly Growing Kids babies teenagers and those that are suffering from some sort of illness are going to need more as much as 9 10 maybe even 12 hours of sleep per night however most people do well to get somewhere between six and8 hours of sleep per night you're just going to have to experiment and figure out what's best for you”

“For most people, it's going to be 6 to 8 hours. There are you rare ones out there that can get by on 4 to 5 hours, but the data really point to the fact that most people should get 6 to 8 hours, maybe nine if or maybe more if you're a kid and you're developing or you're combating a, you know, an illness or something, but 6 to 8 hours.”

“Ideal is 7-8 hours.”

“The sweet spot for most people is ~7–8 hours”

“it's a fraction of the population perhaps one or point five percent of the population who can actually do that”

“I think the vast majority of us 97 99 need seven and a half to eight hours of true sleep that's not just time in bed of sleep to function best every day”

“I think that seven and a half to eight hours is probably the ideal amount of sleep for the vast majority of humans”