One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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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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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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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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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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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