The light or the content? What we know about screens and sleep disruption

Too much screen time impairs sleep for children and adolescents, and it’s largely the content on those screens that keeps them awake. But it remains less clear whether the light from those screens also impairs sleep or whether and how screens directly disrupt adults’ sleep, too. That’s the consensus from 16 leading sleep experts, including two from CU Boulder, who published an exhaustive scientific review on screen time and sleep in Sleep Health, the journal of the National Sleep Foundation.