Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Bats sleep 18-20 hours per day.
5
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
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
47% of people have a nightmare at least once a month.
186