The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
The average person falls asleep in seven minutes.
115
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
The human brain is more active during sleep than during the day.
28
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34