How much sleep do you need to be "at your best"?  I tend to peak at 6 hours a night.
138322
It really depends on how many times you go through REM cycles.  You typically should go through 4 complete cycles...from 6 to 8 hours, usually.  Interestingly, the world record for staying up was 11 nights straight and the guy who did it only needed one full night of sleep (14 hours) to recover!  I wouldn't recommend trying it, considering he thought there were hairy worms on his coat...he hallucinated.
278552
Unfortunately, sleep deprivation is not something you can easily catch up on.  You need to get as much sleep as you can on every occasion that you can.  This means even cat naps for 1/2 an hour when you first get home from school or work - any time you can dedicate to sleep is good.  Don't try to get 2 hours per night and 20 hours over the weekend, it's not good for you.
410111
I forget what it's called exactly. We all have certain hours of the day we're at our best. Yours is at night.\n\nWhen I was in Graphic Design, my best work and grades were when I worked on them in the late night hours.\n\nTry to get a job that gives you those hours. Or, you CAN eventually train your inner clock to the time you want it to be. Just keep at it. See if your doc will give you a mild aid to sleep at night hours. There are also mild ones over the counter. Wall Mart has a blue colored one by Equate that helps me sleep without feeling groggy in the AM. You get a good 6-7 hours.
451377
I usually go to bed around 23:00 when I start work at 09:00, and 22:00 when I start at 08:00. I'm up whenever my body says it's enough or if I can't sleep anymore. Strange, I hardly ever need my alarm clock anymore.
640071
I don't know.  I am well over 20 and it is after 11pm.  It is past my bed time....
227328
Body need 7-9 hours on average -- If you are getting less then that once in a while that will not hurt you. But the sleep you do get is it consistent - if you wake up a lot during rest then there might be a problem
221261
You should get at least 8 hours of quality sleep a night.
583623
i am a mom of 4 i go to bed around 2am and up at 6am and the time im up im doing everything that has to be done so i guess i would morning evening and some of a night person lol
383280
I think that its better to go to sleep at 10:00pm and wake up at 5:00am. But try to get at least 6-8 hours to be recharge and ready the next day.
350171
I'm a full time college student with a full time job and another part time job. I usually end up going to bed around 12 or 1 in the morning, and waking up around 5 or 6, depends what time I have to be at work, sometimes even 4 AM. I usually run on about 5-6 hours of sleep each day. It is tiring, but that's life.
273550
For some people, that is true.  It really depends on your body's chemistry.\n\nGenerally, since your body is only halfway (if that) through it's rejuvination process, and could potentially be in the middle of REM sleep after 2-3 hours, it could potentially leave you feeling more tired than you would be had you not slept at all.\n\nAlso, once you are sleeping, you're in that nice comfortable place and you tend to be much harder to wake, so you may end up accidentally sleeping more than 2-3 hours.\n\nAll-nighters are not something I'd reccomend, but in some cases, yes, they are better than only a couple hours of sleep.
487820
There will be times in your life when you will need 12 hours and it's no big thing.  Your body tells you when you need sleep, and if it's at all possible (like not at work or driving, etc.) then listen to your body.  When you sleep your body rebuilds itself.  Just don't over-do it night after night with that much sleep.  Normal needed is about 8 hours a night.  But you can play catch-up sometimes.
314410
I sleep for about 8 hours a day and really need it to be honest. I exercise very intensely for about 1.5hrs per day. I also have two very young kids 1 & 3 yrs who tire me out, I work two days a week and also study. By 9.30am I am buggered I collapse on the couch with the laptop and chill out by answering your questions. By 10.30pm I go to bed and wake up around 6.30am every day.
3621
6-9 hrs and an average of 7 hours
56363
what time do you go to bed? Maybe you're not getitng enough sleep; most people need about 7 hours. Do you get any exercise? That might help. It may also be what you eat; are you eating a good healthy breakfast, and a decent lunch? Plenty of fruit, not too many carbs?
368974
I sleep about 7 hours a night.  I do not take naps either.  I am 29
192443
Although it’s a common belief that 8 hours of sleep is required for optimal health, a six-year study of more than one million adults ages 30 to 102 has shown that people who get only 6 to 7 hours a night have a lower death rate. Individuals who sleep 8 hours or more, or less than 4 hours a night, were shown to have a significantly increased death rate compared to those who averaged 6 to 7 hours.