Two-thirds of American adults have slept with their cell phones on or right next to their beds. The number rises to over 90% among people ages 18 to 29. Those are some of the conclusions from the huge Pew Internet & American Life Project called “Cellphones and American Adults.”
What the Pew study did NOT mention is the MIT study from January of 2008, which showed that using a cell phone prior to sleep increases headaches AND negatively affects the timing and amount of slow wave (deep) sleep one gets. This slow wave sleep is important for weight maintenance (leptin levels) and memory functionality. Why don’t you just read a book about cell phones before going to sleep? It would be a more healthful choice.
The Sleep Cycle