A new Norwegian study finds that one hour of screen time at bedtime results in a 59% higher risk of insomnia and 24 fewer minutes of sleep. The findings indicate that social media use is no more disruptive to sleep than watching TV or movies or reading on a mobile device.

People who spend more time looking at a screen in bed are more likely to report insomnia and sleep loss, a study has found. The research is based on a Norwegian survey of more than 45,000 students. It indicates that each additional hour of screen time was linked to a 63% increase in insomnia risk, and 24 minutes less sleep.

"The type of screen activity does not appear to matter as much as the overall time spent using screens in bed."