"Dysania" is the state of finding it hard getting up out of bed in the morning.
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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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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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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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Termites work 24 hours per day and they do not sleep.
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The human brain is more active during sleep than during the day.
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The harder you concentrate on falling asleep, the less likely you are to fall asleep.
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