The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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47% of people have a nightmare at least once a month.
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The harder you concentrate on falling asleep, the less likely you are to fall asleep.
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A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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