Sea otters hold hands while sleeping so they don’t drift away from each other.
104
You burn more calories sleeping than you do watching television.
348
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
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
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28