One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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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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Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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You forget 90% of your dreams.
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You burn more calories sleeping than you do watching television.
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If you hold farts in during the day, they'll just come out when you sleep.
16
Those who get out of bed by 7am are more likely to be thinner and happier.
20