The strangers in your dreams are actually people that you've seen in real life.
50
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Honeybees never sleep.
276
Cows can sleep standing up, but they can only dream lying down.
745
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
Bats sleep 18-20 hours per day.
5
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12