In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
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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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47% of people have a nightmare at least once a month.
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The strangers in your dreams are actually people that you've seen in real life.
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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.
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