A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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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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If you hold farts in during the day, they'll just come out when you sleep.
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Honeybees never sleep.
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Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
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Lack of water is the #1 trigger of daytime fatigue.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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