Late-Night Scrolling: Helping a Teen Who Won't Sleep

Why the phone wins at bedtime

Across the research, screen time is adversely associated with sleep in about 90% of studies of school-aged children and teens — meaning shorter sleep and later bedtimes 1Ref 1Hale L, Guan S (2015).Screen Time and Sleep Among School-Aged Children and Adolescents: A Systematic Literature Review.A systematic review found screen time adversely associated with sleep (shorter, later) in 90% of studies of school-aged children and adolescents.. Part of this is design: feeds, autoplay, and notifications are engineered to encourage prolonged use, so 'just one more video' rarely ends on its own 2Ref 2Munzer T, Parga-Belinkie J, Milkovich LM, Tomopoulos S, Ajumobi T, Cross C, Gerwin R, Madigan S; Council on Communications and Media, American Academy of Pediatrics (2025).Digital Ecosystems, Children, and Adolescents: Policy Statement.Feeds and notifications are designed to encourage prolonged use, displacing sleep.. The bedroom becomes a place for activity instead of rest, and the social pull of not missing a message keeps a teen reaching for the phone. Teens also have a natural shift toward later sleep timing, so the phone is pushing against an already-late clock.

Why teen sleep is worth protecting

Sleep isn't a luxury for a teenager — it's tied to mood, attention, and learning. Heavier social media use has been linked in large studies to more internalizing problems such as anxiety and low mood, and sleep loss is one of the pathways that can run alongside it 3Ref 3Riehm KE, Feder KA, Tormohlen KN, Crum RM, Young AS, Green KM, Pacek LR, La Flair LN, Mojtabai R (2019).Associations Between Time Spent Using Social Media and Internalizing and Externalizing Problems Among US Youth.Using social media more than 3 hours per day was prospectively associated with increased internalizing problems in adolescents.. The reassuring news is that the overall link between screen use and well-being, while real, tends to be small at the population level, which means screens are one lever among many rather than a verdict on your teen 4Ref 4Orben A, Przybylski AK (2019).The association between adolescent well-being and digital technology use.The association between digital technology use and adolescent well-being is real but small at the population level.. Fixing sleep is one of the most powerful, concrete levers you have.

What actually helps

Practical, evidence-aligned steps:

• Park the phone outside the bedroom overnight — a shared charging spot in the kitchen or hallway. This is the highest-impact change.
• Set a wind-down window with screens off the hour before bed 1Ref 1Hale L, Guan S (2015).Screen Time and Sleep Among School-Aged Children and Adolescents: A Systematic Literature Review.A systematic review found screen time adversely associated with sleep (shorter, later) in 90% of studies of school-aged children and adolescents..
• Make it a family rule, not a teen-only rule — parents charge phones outside the bedroom too.
• Use a real alarm clock so the phone isn't 'needed' at the bedside.
• Write it into a Family Media Plan with screen-free zones and times, agreed together 5Ref 5American Academy of Pediatrics, HealthyChildren.org (2023).How to Make a Family Media Plan (AAP Family Media Use Plan).A Family Media Use Plan with screen-free zones and protected sleep time supports healthier habits..

Involve your teen in setting the rules; buy-in matters more than perfection, and expect a transition period.

When a clinician helps

Many late-night-phone sleep problems improve with consistent limits. But it's worth bringing in your teen's pediatrician or a behavioral-health provider if sleep stays badly disrupted despite changes, if your teen seems persistently anxious or low, if they're exhausted but unable to sleep even without the phone, or if screen use feels compulsive and is crowding out school, friendships, and family. A clinician can use validated screening tools to check for an underlying sleep disorder, anxiety, or depression rather than assuming it's 'just the phone,' rule out medical causes of poor sleep, and offer evidence-based treatment such as CBT for insomnia or for anxiety. They can also coordinate with school around schedules and workload when sleep loss is affecting the day.