In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
Termites work 24 hours per day and they do not sleep.
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The strangers in your dreams are actually people that you've seen in real life.
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Lack of water is the #1 trigger of daytime fatigue.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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