Bats sleep 18-20 hours per day.
5
Those who get out of bed by 7am are more likely to be thinner and happier.
20
You forget 90% of your dreams.
256
Cows can sleep standing up, but they can only dream lying down.
745
Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
57
Lack of water is the #1 trigger of daytime fatigue.
148