Pillow
Pillow can help you sleep better, prevent the neck-pain.

Besides pillow also can used to a pillow fight. Pillow fight is a common game mostly played by children, but nowadays its also played by teenagers and adults.Mostly, a pillow fight start before sleeping , they play a pillow fight war. 

After playing, they will feel tired and easily to sleep. pillow fight also help people easily to sleep.For example, you go to a trip with your friends, and you can't sleep with different bed or pillow.(cause mostly people like their own pillow or bed that have a special power to let them sleep.) If you can't sleep with a different place , why don't you start a pillow fight.