Ellie Koning has designed an infographic detailing 16 facts we did not know about sleep, based on the information provided by Psychology Degree.
The needed amount of sleep hours varies with age, and men dream about other men 70% of the time as compared to women dreaming about both genders equally.
Scroll down to find out more facts about sleep.
Click on image to enlarge
Click on image to enlarge
[via PositiveMed]