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Tablets before bed may disrupt kids' sleep, study finds

NCT ID NCT05820555

Knowledge-focused Sponsor: Baylor College of Medicine Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how using a tablet in the evening affects young children's sleep and thinking skills. Researchers compared kids who used a tablet before bed with those who had no screen time. They measured changes in sleep timing, melatonin levels, and executive function. The goal is to understand if screen time near bedtime is harmful for preschoolers.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
timed evening tablet use
What this could lead to
If it works, this could help families understand how screen time before bed affects children's sleep and thinking skills.
What could go wrong
This is a small, completed study with 170 children. Results may not apply to all kids or different devices. It only looks at short-term effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

170 people

The number who actually took part.

Started

Apr 2023

Finished

May 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

48 to 59 months

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * preschool-aged children (4.0 to \<5.0 years old) and their parent * living in the Greater Houston area. * parent must be a biological parent or legal guardian who lives with the child ≥50% of the time and has a primary role of caring for the child * parent is comfortable participating in the study and responding to questionnaires in English. * The child does not have to have access to mobile device, but if they do, the primary device they use has to be an Android OS ≥5.0 either used only by the study child or shared with others, or an Apple iOS ≥14.0 that only the child uses. * Parent and child must be fluent in English. Exclusion Criteria: * The child has a chronic medical condition or takes a medication affecting sleep, or circadian rhythms (e.g., melatonin supplementation, diagnosed sleep disorder, steroid use, etc.) or a diagnosed cognitive or learning impairment affecting EF (e.g., attention deficit hyperactivity disorder). * Child with blindness or significant vision problems that impacts both screen media use and sleep.

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Conditions

The condition(s) this trial relates to.

sleep disorder Sleep Hygiene

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Sleep Sleep hygiene

Contacts and locations

Locations

  • Children's Nutrition Research Center

    Houston, Texas, 77030, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.