The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
People who sleep late have more mental stamina and can outperform early risers.
33
The human brain is more active during sleep than during the day.
28
You burn more calories sleeping than you do watching television.
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"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
You forget 90% of your dreams.
256