THELong Childhood.
Parent question · Sleep

Screens before bed:
what should we change?

A practical starting point, with the evidence behind each part kept in view.

Prototype article. Practical guidance below is attributed to the AAP; our own claim-by-claim evidence review is not complete.

The short answer

Make room for a screen-free wind-down.

The American Academy of Pediatrics recommends switching screens off at least an hour before bedtime and keeping them out of children’s bedrooms, especially overnight. This is professional guidance—not a finding that every child will gain a specific number of minutes of sleep. Read the source [1].

What that could look like at home

Practical examples of implementing that guidance, not separately tested interventions.

  1. Choose a clear finishing point. Work backwards from bedtime so the evening has an agreed end to screen use.
  2. Decide what comes next. A book, conversation or another quiet activity gives the transition a destination.
  3. Choose an overnight home for devices. For example, a shared charging spot outside bedrooms.

For younger children, parents can organise the transition. With older children, discuss how homework and contact with friends fit around it. These are implementation suggestions, not age-specific effect estimates.

Three questions behind the advice

Does use before bed affect sleep?

This is the core timing question. Claim A1 will examine sleep onset and sleep duration separately. The page exists, but its scientific verdict is not yet assigned.

Does a bedroom device matter on its own?

That is a different claim: A2. Evidence about actual use should not automatically be treated as proof of an independent effect of simply having a device nearby.

Would night mode be enough?

A3 asks whether light is the main mechanism and whether changing a setting resolves the problem. We have not completed that assessment; this prototype does not endorse night mode as a substitute for the guidance above.

The claims behind this question

Only A1 has a standalone prototype page. The other records are shown here as pending, not as completed evidence.

A1 · Sleep

Pre-bed screen use delays sleep onset and shortens sleep

Verdict pending · Confidence not assigned

Timing and sleep outcomes. Open the individual record →

A2 · Record not yet built

A device in the bedroom reduces sleep, independent of pre-bed use

Verdict pending. Needed to assess bedroom access separately from use.

A3 · Record not yet built

Blue light is the main mechanism, and night mode fixes it

Verdict pending. Needed to assess the proposed mechanism and workaround.

What this answer cannot promise

We have not established a universal cut-off, a guaranteed sleep improvement, or an effect that is identical at every age. A professional recommendation and a causal estimate answer different questions.

If sleep problems persist, discuss them with your child’s clinician rather than assuming screens are the only explanation. [1]

Sources & review

[1] American Academy of Pediatrics. Healthy Sleep Habits: How Many Hours Does Your Child Need? Guidance checked 11 September 2026. This supports the attributed recommendations, not a completed A1 evidence grade.

Prototype created 11 September 2026. Scientific review: pending. Reviewer: not assigned. Next evidence-review date: not set.