Cows can sleep standing up, but they can only dream lying down.
745
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
44% of kids watch television before they go to sleep.
106
Bats sleep 18-20 hours per day.
5
Those who get out of bed by 7am are more likely to be thinner and happier.
20
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
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