One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Dieters who sleep more take off more fat that those who sleep less.
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"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
The higher someone’s I.Q. the more likely they are to be sleep deprived.
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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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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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The average person falls asleep in seven minutes.
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