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
Lack of water is the #1 trigger of daytime fatigue.
148
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
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