One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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You burn more calories sleeping than you do watching television.
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Honeybees never sleep.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
104
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22