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
The strangers in your dreams are actually people that you've seen in real life.
50
44% of kids watch television before they go to sleep.
106
Termites work 24 hours per day and they do not sleep.
57
People who sleep late have more mental stamina and can outperform early risers.
33
The average cat sleeps about 2/3 of the day.
203