Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Cows can sleep standing up, but they can only dream lying down.
745
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Honeybees never sleep.
276
Termites work 24 hours per day and they do not sleep.
57
47% of people have a nightmare at least once a month.
186
You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
11
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34