This article explains how setting clear and supportive boundaries around social media use can significantly improve teenagers’ sleep. University of Queensland research shows that frequent or problematic social media use can delay bedtimes, disrupt sleep quality, and make it harder for teens—especially girls—to fall asleep, partly due to screen light, emotional stimulation, and fear of missing out. The article encourages parents to focus on practical strategies such as device-free bedrooms, consistent bedtime routines, and limiting social media use before sleep to support healthier rest and wellbeing.