"Dysania" is the state of finding it hard getting up out of bed in the morning.
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You forget 90% of your dreams.
256
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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You burn more calories sleeping than you do watching television.
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People who sleep late have more mental stamina and can outperform early risers.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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The human brain is more active during sleep than during the day.
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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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