"Research has revealed that 53% of children/teens charge their phone or tablet either on their bed or under their pillow," they wrote. "The heat generated cannot dissipate, and the charger will become hotter and hotter."
According to Pop Sugar, research also shows that 72% of kids and 89% of teens use at least one device in their "sleep environment" based on a National Sleep Foundation pollin 2013. "The likely result is that the pillow/bed will catch fire," the fire department added. "This places the child/teen as well as everyone else in the home in great danger."