Sea otters hold hands while sleeping so they don’t drift away from each other.
104
47% of people have a nightmare at least once a month.
186
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Dieters who sleep more take off more fat that those who sleep less.
159
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34