The human brain is more active during sleep than during the day.
28
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
Honeybees never sleep.
276
If you hold farts in during the day, they'll just come out when you sleep.
16
You forget 90% of your dreams.
256
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33