There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
People who sleep late have more mental stamina and can outperform early risers.
33
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
You forget 90% of your dreams.
256
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
The average person falls asleep in seven minutes.
115