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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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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Dieters who sleep more take off more fat that those who sleep less.
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If you hold farts in during the day, they'll just come out when you sleep.
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44% of kids watch television before they go to 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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