Parents are losing an average of seven hours of sleep every week — which is the equivalent of a shocking 48 nights a year. The culprit? Screen time, social media, and school phone policies, resulting in what researchers have dubbed parental “techxiety.” That’s according to the results of a new survey of 2,000 parents of school-aged children, conducted in May by Talker Research on behalf of tech company Cosmo, which makes simple smart watches for kids. It found that the biggest reasons for sleep loss were tech-driven anxieties about their kids’ screen time habits (24%), social media’s impact on self-esteem...