"Dysania" is the state of finding it hard getting up out of bed in the morning.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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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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Honeybees never sleep.
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The average cat sleeps about 2/3 of the day.
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47% of people have a nightmare at least once a month.
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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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