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
47% of people have a nightmare at least once a month.
186
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
44% of kids watch television before they go to sleep.
106
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240