Cell phones emit blue light, which can disrupt the body's natural sleep-wake cycle. Blue light inhibits the production of melatonin, a hormone that prepares the body for sleep.

Cell phones can also overstimulate the brain, especially if you use social media, games, news or email right before bed. Neck pain can make it difficult to fall asleep and cause you to wake up more often during the night. For neck pain, choosing the right pillow can be crucial in relieving discomfort and promoting a healthy sleeping position.