You burn more calories sleeping than you do watching television.
348
47% of people have a nightmare at least once a month.
186
Bats sleep 18-20 hours per day.
5
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
The human brain is more active during sleep than during the day.
28
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15