Cows can sleep standing up, but they can only dream lying down.
745
You forget 90% of your dreams.
256
Honeybees never sleep.
276
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
44% of kids watch television before they go to sleep.
106
47% of people have a nightmare at least once a month.
186
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15