In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Honeybees never sleep.
276
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
47% of people have a nightmare at least once a month.
186
You burn more calories sleeping than you do watching television.
348
Termites work 24 hours per day and they do not sleep.
57
You forget 90% of your dreams.
256