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
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
You burn more calories sleeping than you do watching television.
348
Dieters who sleep more take off more fat that those who sleep less.
159
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
The average person falls asleep in seven minutes.
115