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
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.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
11
Dieters who sleep more take off more fat that those who sleep less.
159
The average person falls asleep in seven minutes.
115
Lack of water is the #1 trigger of daytime fatigue.
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