Bats sleep 18-20 hours per day.
5
Termites work 24 hours per day and they do not sleep.
57
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
If you hold farts in during the day, they'll just come out when you sleep.
16
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
The average person falls asleep in seven minutes.
115
You forget 90% of your dreams.
256