If you hold farts in during the day, they'll just come out when you sleep.
16
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
The strangers in your dreams are actually people that you've seen in real life.
50
You forget 90% of your dreams.
256
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22