You forget 90% of your dreams.
256
The strangers in your dreams are actually people that you've seen in real life.
50
Bats sleep 18-20 hours per day.
5
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240