"Dysania" is the state of finding it hard getting up out of bed in the morning.
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People who sleep late have more mental stamina and can outperform early risers.
33
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Dieters who sleep more take off more fat that those who sleep less.
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The average cat sleeps about 2/3 of the day.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
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