Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Termites work 24 hours per day and they do not sleep.
57
Cows can sleep standing up, but they can only dream lying down.
745