47% of people have a nightmare at least once a month.
186
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Bats sleep 18-20 hours per day.
5
Cows can sleep standing up, but they can only dream lying down.
745
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
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240