You forget 90% of your dreams.
256
People who sleep late have more mental stamina and can outperform early risers.
33
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193