Dieters who sleep more take off more fat that those who sleep less.
159
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
29
Bats sleep 18-20 hours per day.
5
The human brain is more active during sleep than during the day.
28
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212