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
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
You forget 90% of your dreams.
256
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28