The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
The strangers in your dreams are actually people that you've seen in real life.
50
Bats sleep 18-20 hours per day.
5
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Lack of water is the #1 trigger of daytime fatigue.
148
Honeybees never sleep.
276