There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Honeybees never sleep.
276
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Cows can sleep standing up, but they can only dream lying down.
745
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193