Turns out small screens in the bedroom may be worse for sleep than a TV. Little screens enter the room without much effort, stealing away in a pocket or backpack without notice; smartphones also grab our attention in novel ways. The light emanating from small screens is really close to our face (potentially interfering with that lovely melatonin spike before bed in ways a TV across the room cannot) and small screens are often interactive, requiring us respond or type back, provoking alertness. The first study evaluating effects of smartphones and tablets on sleep in US children is out. While the news isn’t surprising it isn’t good either.
We may be raising a really tired generation of children.
I’ve been chatting for years about trying to keep TVs out of childrens’ bedrooms. Simply put, television adds little to a child’s life when viewed right before bed. In fact ,Seattle Children’s experts Dr Michelle Garrison and Dr Dimitri Christakis have shown consuming television just before bed can cause children to have more trouble falling asleep, more nightmares, and more awakenings during the night [here’s more info–> why no TV before bed is better]. Recently though, we learned what we all likely suspected: interactive, small screens may be even worse for a child’s sleep than the TV. Tablets, TVs, iPads, and smartphones are for most adults and kids a normal part of everyday life, even during infancy and toddlerhood. 2013 Common Sense Media data finds 45% of 5 to 8 year-olds have a TV in their bedroom and 72% of children from birth to 8 report using mobile devices during the day.