The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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Cows can sleep standing up, but they can only dream lying down.
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"Dysania" is the state of finding it hard getting up out of bed in the morning.
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Dieters who sleep more take off more fat that those who sleep less.
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