The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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Bats sleep 18-20 hours per day.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
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Lack of water is the #1 trigger of daytime fatigue.
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If you hold farts in during the day, they'll just come out when you sleep.
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