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
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Honeybees never sleep.
276
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
The strangers in your dreams are actually people that you've seen in real life.
50