In college people were talking alot about studies that were done that suggested you can get away with sleeping 5 hours at night and 1 hour midday. I however prefer to do with less work ;) Whether in college or not, people need at least 8 hours of sleep per night. Without rest we don't let our brain go into REM sleep (deep sleep) and we dream every half hour, but seldom remember most dreams. It's the bodies way of taking the stress out of the body. Sleep and food is very important because if you don't have either then your brain or other parts of your body won't act the way they should. Put it this way ... you're not getting the bang for your buck!
less sleep
No but if u sleep alot u live longer
no
It doesn't directly affect your weight. However, the less you sleep the more hungry you feel. So you will eat more if you sleep less.
Sleep TimeRecommended sleep time is eight hours a night, but some sleep more and some less.
Less oxygen intake.
They sleep up to .5 to 2.5 hours less then they do on Earth then in space
some times
drink more coffee
sleep
the more sleep u get the better u work the less the worse
they dont