Is it true that 15 min nap is better than an hour of sleep?
454701
yep its true, with a short nap you dont have time to go into a deep sleep so you dont feel tired and grumpy when you wake up
786302
Not usually, unless it is in the middle of the day. If it is nearing night, near your bedtime, late at night or whatever you should go to bed. It's just your body telling you it needs to reboot, so it would be best if you listened to it. You should sit yourself up on a  continous sleep system, going to bed at the same time and waking up at the same time, that way you will get the most out of your sleep. But anyways, i don't think it is a good thing to fight your sleep, unless like i said before it is in the middle of the day, because you may not want to take a nap cause it can mess up your sleep schedule.
892742
if you dont sleep enough, youll gain weight, you need a good amount of sleep in a good rhythm (about 8 hours are perfect for adults, children and teenagers need more)
800402
what time do you have to be at school? take a nap if you can fit at least three hours in.
1036908
I wouldn't recommend it.  At least get 2-3 hours of sleep, then wake up early and continue studying.
845486
It will improve the quality of the sleep you get. You will sleep deeper and feel more rested, even if you sleep less hours. but, do not work out within 2 hours of going to bed or it can boomerang and actually keep you awake.
587870
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.
1137755
I went almost a week with only a couple 30 minute naps.  It depends on who you are and how much energy inducing stuff you drink normally.
711307
I prefer to spend 1 hour. 15-45 minutes isn't enough.
359885
Closer to 1:30 or 2:00pm. Naps are wonderful!
491905
Dividing your sleep is okay.  It used to be common practice.\n\nTry timing your sleep to sleep cycles.  It is best to wake up during REM sleep which occurs at approximately 90 minute intervals (90mins, 3hrs, 4 and 1/2hrs, 6hrs, etc.).  If you wake during REM you will feel more aware and ready to go.  If you awake during deep sleep (non-REM), then you will feel groggy and less rested.  \n\nSleeping mid-day (12ish to 3ish) was common practice before the industrial revolution.  With the industrial revolution people had to start punching in and working through the hottest hours of day.  Before that people would rest/nap during those mid-day hours (those are the origins of the siesta).\n\nIf you can manage 6hrs at night and 3hrs during the day, you ought to be in good shape.  If you can't do six at night, I would recommend 4&1/2 at night and 3 during the day.  \n\nNine hours is actually too much sleep.  Studies have shown that people who sleep over 8 hours a day don't live as long as people who sleep less than 8 hours.\n\nGood luck establishing a routine that works for you!
1088841
From my experience (6 years in college) it depends on the person.  Some people do better if they study all night and get only 3 hours sleep.  Others prefer to study the most they can and get a few more hours sleep.  Try different ways and see what suits you best.\n\n\nSpeaking of finals... I'd better get back to studying.
1136626
Not enough in general. We need good six hours sleep .\nAlso your age sex your physical conditions the type of work , all play a role. How can I pilot or driver be continuously exposed to short periods of sleep and endangering the life of many.\nIf you are enjjoying holidays and watching WORLD CUP FOOT BALL MATCH DAILY LATE IN THE NIGHT AT PLACES LIKE ASIA then less sleep, intemittent sleep during night and a day time nap is ok. You cant help it. We get to watch such matches once in four years and there is thrill in watching LIVE not recorded and replayed
267870
10:15+ (90/4) = 10:37.5, but that doesn't really matter, b/c the next time when the overlapping/little over fifteen minutes later thing works is 3:15, to 3:33 (you could even say 33 seconds as well) and then 3:33 and 33 secs + 4.5 hours =\n\nSally woke up at 8:03 and 33 seconds
863947
Adult requires a minimum sleep of 6 hours a day, sleeps will seriously effect your health in a very big way, if you do not get enough sleep, your anxienty, stress level will increase with ease, your mind will not think properly and also that your health will deteriorate extremely fast. so please try not to sleep at the minimum of 6 hours, get a healthy 8 to 9 hours. \n\nIn Korea this guy died of being awake for 50 straight hours playing online game. A few cases has happend already. so Take care Cheers
48462
It does not really matters, i do it in the afternoons after work, it helps me sleep better cause my body is exausted or stressd out from the work out.
485799
You should get at least 8 hours of quality sleep a night.