Honeybees never sleep.
276
47% of people have a nightmare at least once a month.
186
Bats sleep 18-20 hours per day.
5
People who sleep late have more mental stamina and can outperform early risers.
33
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
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
If you hold farts in during the day, they'll just come out when you sleep.
16
Lack of water is the #1 trigger of daytime fatigue.
148