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.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
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The average cat sleeps about 2/3 of the day.
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Dieters who sleep more take off more fat that those who sleep less.
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Termites work 24 hours per day and they do not sleep.
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