Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
People who sleep late have more mental stamina and can outperform early risers.
33
You burn more calories sleeping than you do watching television.
348
You forget 90% of your dreams.
256
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240