Bats sleep 18-20 hours per day.
5
Dieters who sleep more take off more fat that those who sleep less.
159
The average person falls asleep in seven minutes.
115
People who sleep late have more mental stamina and can outperform early risers.
33
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212