47% of people have a nightmare at least once a month.
186
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
Bats sleep 18-20 hours per day.
5
The human brain is more active during sleep than during the day.
28
The average person falls asleep in seven minutes.
115
The strangers in your dreams are actually people that you've seen in real life.
50
Lack of water is the #1 trigger of daytime fatigue.
148