Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
The average person falls asleep in seven minutes.
115
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Bats sleep 18-20 hours per day.
5
The strangers in your dreams are actually people that you've seen in real life.
50