Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Cows can sleep standing up, but they can only dream lying down.
745
44% of kids watch television before they go to sleep.
106
Bats sleep 18-20 hours per day.
5
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
People who sleep late have more mental stamina and can outperform early risers.
33
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28