This question on Quora elicited an enormous amount of feedback. Can a person function normally on 4-5 hours of sleep per night, and should they? Many contended that being able to sleep 4 hours per night is a genetic gift (hypo-sleepers) that can be aided by various techniques, such as finding the right time of the night to sleep, avoiding boring meetings and TV, or short-changing your carb load. Others argued that those that think they can function on little sleep are fooling themselves and jeopardizing long term health.
Some may think they’re special, and are performing optimally on a 4h sleep schedule. No, they’re not. You may think you are, and even feel good for “hacking” your body and extending the day by 15%. But the problem is: it’ll cost you a price, as it has been proven again and again… Like someone who’s had two drinks, and still thinks [they are] perfectly capable of driving.
I think we need our sleep. It’s admirable to think we can function normally on little rest. I experimented with this myself in my twenties until a much older friend advised that one of the things he’d learned in his long life was to get plenty of sleep, ideally 8 hours. He found that he was a better version of himself: less irritable, more careful and considerate, and capable of deeper thought. I took his advice and immediately found his findings to hold true with my own life. Since then, even in stressful times with busy schedules, I’ve given myself permission to get a full night’s sleep.