47% of people have a nightmare at least once a month.
186
Those who get out of bed by 7am are more likely to be thinner and happier.
20
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
You burn more calories sleeping than you do watching television.
348
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Cows can sleep standing up, but they can only dream lying down.
745