One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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People who sleep late have more mental stamina and can outperform early risers.
33
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
You burn more calories sleeping than you do watching television.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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