One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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"Dysania" is the state of finding it hard getting up out of bed in the morning.
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The human brain is more active during sleep than during the day.
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47% of people have a nightmare at least once a month.
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
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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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