You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
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Bats sleep 18-20 hours per day.
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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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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
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