A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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The human brain is more active during sleep than during the day.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
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