Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Cows can sleep standing up, but they can only dream lying down.
745
Termites work 24 hours per day and they do not sleep.
57
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193