New research suggests that children are losing one night’s worth of sleep each week by using social media. In a study presented recently at the British Science Festival, researchers surveyed 60 10-year-old children about their sleep and social media use. The children averaged 8.7 hours of sleep each night, less than the recommended 9 to 11 hours. That nightly sleep deficit equated to losing a full night’s sleep each week. Close to 70 percent of the children used social media for more than four hours each day. And 1 in 8 of the children woke up in the middle of the night to check notifications. The researchers believe that the fear of missing out, and not knowing what their friends were doing, is directly causing many children to lose sleep.