The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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Honeybees never sleep.
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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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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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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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The average person falls asleep in seven minutes.
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Dieters who sleep more take off more fat that those who sleep less.
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