You burn more calories sleeping than you do watching television.
348
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Those who get out of bed by 7am are more likely to be thinner and happier.
20
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23