The human brain is more active during sleep than during the day.
28
Termites work 24 hours per day and they do not sleep.
57
The average cat sleeps about 2/3 of the day.
203
You forget 90% of your dreams.
256
44% of kids watch television before they go to sleep.
106
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34