47% of people have a nightmare at least once a month.
186
You forget 90% of your dreams.
256
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
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
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
The human brain is more active during sleep than during the day.
28