Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
47% of people have a nightmare at least once a month.
186
People who sleep late have more mental stamina and can outperform early risers.
33
Honeybees never sleep.
276
You forget 90% of your dreams.
256
The average person falls asleep in seven minutes.
115