Cows can sleep standing up, but they can only dream lying down.
745
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
You forget 90% of your dreams.
256
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Honeybees never sleep.
276