1. A condition of body and mind such as that which typically recurs for several hours every night, in which the nervous system is relatively inactive, the eyes closed, the postural muscles relaxed, and consciousness practically suspended.
Humans need sleep not only for physical heath but also mental health.
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by kaosmoker September 30, 2018
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When you close your eyes and shut the f**k up!
Girl:whats your definition of sleep?
Boy: when you close your eyes, and shut the f**k up!
by ctorres624 March 10, 2010
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A really childish and infantile substitute for the word for "days", usually used when some lamewad is counting down the days until their next loser adventure.

It assumes we all think like children, and think things like "time for sleep!!" when it gets late.
"hey honey, only three more sleeps until our vacation!!"

"three more SLEEPS?? How old are you, six?? Grow the hell up. We adults just say 'days'."
by sully.d August 17, 2009
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Something that students of Stuyvesant High School as well as other competitive high schools are deprived of. It consists of closing your eyes and going into another world.
"Hey what school do you go to?
"I go to stuy"
" O man, sorry man i heard you get no sleep"
" Naw man " :
by sleepmaster101 January 24, 2010
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to rest; state of dormancy or inactivity.
sleep, what wilson does not do.
by JessicUHHH March 05, 2008
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The stuff that accumulates at the side of your eyes after a kip. You tend to get more of it if you're unwell or have been out of it for a long time.
"I've got loads of sleep in my eyes. I need to get some water to rinse it out."
by Brendan July 13, 2005
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