Did you know that one in 50 teenagers still wets the bed? Or that one out of every four married couples has separate beds? Psychology Degree has published a poster listing 16 little-known sleep facts.
For example, babies need 16 hours of sleep, while senior citizens (adults over 65) only need 6 hours a night. Also, we can only dream about faces we have already seen, whether we actively remember them or not. So what about those dreams where we recognize a person as someone we know, yet he or she doesn't look like that person? That face belongs to someone else - we just don't remember who. Spooky!
More fascinating sleep facts: Dreaming itself is a normal activity - if you don't dream, that's a problem. Lack of dreaming could indicate you have a personality disorder. When color TV was invented, more people began dreaming in color - 12% of people still dream only in black and white, and that percentage was higher before color TV.
See the poster below for even more interesting information on sleep.