How much sleep do we need?

I definitely think it depends on the individual and how well they function on the amount of sleep they receive. I used to sleep 2-4 hours a night when I was in school, staying up on the internet, doing homework, watching movies, reading etc until the sun began to come up, when I would drag my tired self to bed. I practiced this, definitely unhealthy sleeping pattern, for almost 3 years before I decided i was over being tired and sore and stressed out all the time. I now get 6-8 hours of sleep and find that this better suits my life-style. I get more, better sleep and I can get up and ready in time for whatever I plan on doing with my day. =]

Yup, eight hours of uninterrupted sleep every day is about right. For younger people, I think they need more than 8 hours as they are rapidly developing and growing so yes, it varies from person to person but a minimum of 8 hours a day is about right. I don't think two or three hours of sleep is healthy at all. I mean, would you feel energised after being awake for 21-22 hours and resting for just two to three hours? I know I won't.

I have a read one book that talk about how long do we need to sleep for a day! And the doctors advice us to sleep at least 8 hours per day to balance your all activities during the day. Lack of sleep is one of the reason of despress, stress.... So i don't think sleep two and three hour is healthy!

Well they say the aveerageis 8, but I think it depends a ot on the individual. Famously, someone like Margaret Thatcher always said she could survve on 5. Yet I've read people like actress Penelope Cruz and tennis star Roger Federer, need 10 hours a night. I admit, if left to ny own devices, I naturally sleep for 10, and wake up naturally feeling great! Sadly - during the working week, I can never get that amount though, and have to manage with 8, which means I am constantly shattered by the end of the week. Any less than 8, and I actually become physicaly ill - heacaches, migraines, nausea, palpitations - the whole thing! So, as I said I feel it is a very persoal, indivudal thing - no right or wrong.

I do know that it does depend on the individual, but anywhere from 5-9 hours, myself I would love to get as much as possible..^O^ But I get around 7-8 hours.

I think that differs among different people. My mother sleeps for five hours every night. I feel she is healthy. Only if we get used to our living habit, healthy will get along with you.

Well, I've always heard that all people need 8 hours which is healthy But I think it depends on people's body I need 8 hours of sleep but my brother doesn't, he only sleeps 5 hours and he's as healty as I am