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
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Dieters who sleep more take off more fat that those who sleep less.
159
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12