We can only dream about faces we have already seen, whether we actively remember them or not.

Parasomnia is a type of sleep disorder that makes you do unnatural movements, despite being asleep.

Crimes committed on parasomnia include, sleep driving, writing bad checks, murder, child molesting, rape.

12% of people dream only in black and white. This number used to be higher but since the advent of color television, more people dream in color than before.

Dreaming is normal. People who do not dream generally have personality disorders.