The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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The average person falls asleep in seven minutes.
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You forget 90% of your dreams.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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The average cat sleeps about 2/3 of the day.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Termites work 24 hours per day and they do not sleep.
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