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Screen time rules for kids and teens

The screen time rules that last are the ones that are easy to state, easy to keep and the same every day. Most household rules fail not because children ignore them but because they are ambiguous, negotiable, or need an adult to enforce them in the moment. This guide is about setting up rules that hold on their own — and doing it without surveillance.

4 min readUpdated
A family kitchen table with homework and a phone left in a basket on the side

What you’ll do

  • Start with two non-negotiables, not a full policy.
  • Make rules about places and times, not amounts.
  • Explain the reason once, properly, and then stop re-arguing it.
  • Match the boundary to age, and loosen it as judgement develops.
  • Enforce with structure rather than with vigilance.
In this guide
  1. 1Start with two non-negotiables
  2. 2Make the rule about places and times, not amounts
  3. 3Explain the reason once, properly
  4. 4Match the boundary to the age
  5. 5Enforce with structure, not surveillance
  6. 6Expect to renegotiate, on a schedule

Start with two non-negotiables

A long list of rules is a long list of arguments. Two clear ones, kept consistently, do more than eight that get applied when someone has the energy.

Most families land on the same two, because they protect the two things that matter most and cost the least to give up:

  • No phones at the dinner table
  • No phones in bedrooms overnight

Get those working before adding anything. If they hold for a month, you can talk about homework and weekends.

Make the rule about places and times, not amounts

"Two hours a day" requires someone to count, produces a daily negotiation over what counts, and treats a video call with a grandparent the same as an hour of short video. "Not in bedrooms after nine" requires nobody to count anything.

It also matches how phone habits actually form. Research in Scientific Reports describes smartphone use becoming more automatic in familiar locations — so place is the lever that does the most work.

Explain the reason once, properly

Rules that come with a reason are followed more willingly than rules that come with an assertion of authority, and the reason here is a good one and worth saying plainly.

Evening and in-bed screen use is repeatedly associated with poorer sleep in adolescents — see the Journal of Adolescent Health and JAMA Pediatrics. Sleep is a concrete, non-moralising reason that most teenagers accept, because they can feel it.

Say it once, answer questions honestly, and then stop relitigating it. A rule that gets re-argued every evening is a nightly invitation to try.

Match the boundary to the age

A nine-year-old and a sixteen-year-old need different things. The younger one needs the structure supplied for them; the older one needs practice at running it themselves, with the structure as a backstop.

  • Younger children: fewer decisions, more routine, boundaries set by adults
  • Early teens: the same boundaries, but agreed rather than announced
  • Older teens: they choose the specifics, you hold two or three fixed points

The direction of travel should be towards them managing it, and it should be visible to them that this is the direction. Boundaries that never loosen invite the kind of workaround you will not find out about.

Enforce with structure, not surveillance

Monitoring apps that report what a child looked at buy compliance at the cost of trust, and they put a parent in the position of policing rather than parenting. They also stop working the moment a young person finds the second device.

The alternative is to make the environment carry the rule. Nobody is watched, nobody is caught, and the boundary does not depend on an adult being in the room.

Expect to renegotiate, on a schedule

Set a time to review — the start of a term is a natural one. A rule with a review date is easier to accept than one that feels permanent, and it gives you a legitimate answer to "can we change this?" that is not simply no.

Then actually change something when it is warranted. Rules that never move are rules children stop taking seriously.


The goal is not a household that uses screens less. It is a household where the rules are clear enough that nobody has to argue about them at ten o’clock at night.

What the research shows

These are associations reported in published work, not proof that any single change will produce a particular outcome.

Journal of Adolescent Health(opens in a new tab)

Frequent evening and in-bed screen use is associated with poorer sleep quality and delayed sleep onset in adolescents.

JAMA Pediatrics(opens in a new tab)

Bedtime screen use is associated with poorer sleep outcomes in children and young people.

Scientific Reports(opens in a new tab)

Smartphone use becomes more automatic in familiar locations, which is why place-based rules tend to need less enforcement than time-based ones.

International Journal of Mental Health and Addiction(opens in a new tab)

A randomised intervention found that bounded, predictable restrictions and changed defaults outperformed approaches relying on self-control alone.

Common questions

Whenever the device arrives. It is far easier to set the expectation on day one than to introduce it later, when it will read as a punishment for something.

For shared spaces, yes — and it makes an enormous difference to whether they are accepted. A dinner table rule that only applies to the children is a rule about power; one that applies to the table is a rule about dinner.

There are safeguarding situations where a parent needs visibility, and those are real. As a default for an ordinary household, though, it substitutes surveillance for trust and tends to teach concealment rather than judgement.

Then the rule was about the device rather than the room, and it needs restating. "No screens in bedrooms overnight" holds up where "no phones" does not.