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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If you hold farts in during the day, they'll just come out when you sleep.
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Cows can sleep standing up, but they can only dream lying down.
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Honeybees never sleep.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Bats sleep 18-20 hours per day.
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Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
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