People who sleep late have more mental stamina and can outperform early risers.
33
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Dieters who sleep more take off more fat that those who sleep less.
159
Bats sleep 18-20 hours per day.
5
Cows can sleep standing up, but they can only dream lying down.
745
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15