You forget 90% of your dreams.
256
Bats sleep 18-20 hours per day.
5
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
If you hold farts in during the day, they'll just come out when you sleep.
16
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22