A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
44% of kids watch television before they go to sleep.
106
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
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
Lack of water is the #1 trigger of daytime fatigue.
148
The human brain is more active during sleep than during the day.
28
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149