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
The human brain is more active during sleep than during the day.
28
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
You burn more calories sleeping than you do watching television.
348
Termites work 24 hours per day and they do not sleep.
57
47% of people have a nightmare at least once a month.
186
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240