Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Cows can sleep standing up, but they can only dream lying down.
745
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
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