How many hours is too much?

There is no reliable threshold in the research for school-age children. Ask instead whether sleep, school, movement, friendships and mood are intact. If all five are fine, the number is probably fine.

Should my ten-year-old have a phone?

The useful question is which functions they need — contact, maps, music — and whether social media and an open browser need to come with them. Many families do well with a call-and-text device for two or three years.

What about screens for homework?

Separate work devices from entertainment where you can, keep homework in shared space, and treat notifications as the real problem rather than the screen itself.

My teenager says everyone else has no limits.

Often partly true and rarely relevant. Hold the two rules that matter most — overnight charging outside the bedroom and no phones at meals — and let go of the rest gracefully.

Digital Families

Screen Time Rules by Age: What Actually Works at 5, 10 and 15

The hours matter far less than what is displaced. A workable family plan protects sleep, movement and conversation — and then stops arguing about minutes.

Reviewed by Sian Trombley, CCCFounder, Thrive Family Company

9 min read

AgesAll AgesDigital Families9 min readTherapist Created

Best for parents of children who are…

finding it hard to settle or stay asleep
needing extra emotional support at the moment
going through a change at home or at school

What to hold at each age

01
Ages 5–8
Screens in shared rooms, adult-chosen content, no devices in the hour before bed, and a clear predictable slot rather than a negotiated one.
02
Ages 9–12
Introduce ownership gradually: their own log-in, agreed apps, no social media accounts, overnight charging outside the bedroom, and regular conversation about what they saw.
03
Ages 13–15
Move from control to coaching. Keep overnight and mealtime rules absolutely; discuss algorithms, comparison and group chats openly and without confiscation as the default response.
04
Ages 16–18
Hand over most decisions, keep the overnight norm as a family value, and focus on sleep, driving, money and image-sharing rather than duration.

What to say at the handover

Research highlight

Large-sample analyses of adolescent screen use find that the association between total daily screen time and wellbeing is very small — smaller than the association with sleep, breakfast and physical activity — while use that displaces sleep, and night-time use specifically, shows more consistent negative links with mood and daytime functioning. Paediatric guidance has correspondingly shifted from hour limits to family media planning built around protected activities.

Sources

01Orben, A. & Przybylski, A. K. (2019). The association between adolescent well-being and digital technology use. Nature Human Behaviour, 3, 173–182. View source
02Hale, L. & Guan, S. (2015). Screen time and sleep among school-aged children and adolescents: a systematic literature review. Sleep Medicine Reviews, 21, 50–58. View source

“The question is not how long they were on it. The question is what it took the place of.”
Sian Trombley

Rules that survive real life

All devices, including parents', charge outside bedrooms overnight.
No screens at the table — this one is worth more than any time limit.
Games end at natural stopping points, agreed before they start.
Weekend mornings begin with something physical before anything digital.
One weekly conversation about content, held sideways: in the car, never as an interrogation.

When to seek help

Speak to your GP or school if gaming or scrolling has displaced friendships and sleep for months, if withdrawal of a device triggers extreme distress or aggression, if your child is being contacted by strangers, or if mood has clearly deteriorated alongside use. Early conversations are far easier than late ones.

The question was never how many hours. It is what the hours displace — sleep, movement, faces.
Sian Trombley, Canadian Certified Counsellor

What you can try this week

Step 01

Name the four protected zones

Sleep, meals, homework hour and the first thirty minutes of the morning. Screens live outside them. Nothing else needs a number.

Step 02

Charge everything in one room

Including yours. A family charging station removes the nightly individual negotiation and makes the rule about the household rather than the child.

Step 03

End on the game's terms

"Finish the round, then off" produces far fewer meltdowns than a countdown that lands mid-match. Ask them what a natural stopping point looks like.

Key takeaways

Protect what screens displace rather than policing the clock.
Devices out of bedrooms overnight is the single highest-value rule at every age.
Content and context predict harm better than duration.
Transitions cause the meltdowns — end games at natural stopping points.
Rules you can enforce calmly beat ideal rules you abandon by Wednesday.

Reflection

What is the screen actually replacing in our evening?
What is my own phone doing during the times I ask them to be off theirs?
Which rule do I enforce inconsistently, and would a simpler one survive better?

Printable resources

Companion worksheetA printable page to use alongside this article.Family conversation cardScripts you can read straight from the page.

Recommended Thrive courses

PathwaySupporting Families in a Digital World

This article is educational and is not a substitute for individual clinical advice. Comments are closed so the Journal stays a calm place to read.

Screen Time Rules by Age: What Actually Works at 5, 10 and 15

What to hold at each age

What to say at the handover

Rules that survive real life

When to seek help