Honeybees never sleep.
276
The average person falls asleep in seven minutes.
115
Termites work 24 hours per day and they do not sleep.
57
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
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 average cat sleeps about 2/3 of the day.
203
Lack of water is the #1 trigger of daytime fatigue.
148