The average cat sleeps about 2/3 of the day.
203
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
The human brain is more active during sleep than during the day.
28
47% of people have a nightmare at least once a month.
186
Termites work 24 hours per day and they do not sleep.
57
The average person falls asleep in seven minutes.
115