Cited by 718Sleep and related disordersChild Development and Digital TechnologyImpact of Technology on Adolescents

Association Between Portable Screen-Based Media Device Access or Use and Sleep Outcomes: A Systematic Review and Meta-analysis

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Carter, Ben, Rees, Philippa, Hale, Lauren, Bhattacharjee, Darsharna, Paradkar, Mandar S.·2016·JAMA Pediatrics

Abstract

Importance: Sleep is vital to children's biopsychosocial development. Inadequate sleep quantity and quality is a public health concern with an array of detrimental health outcomes. Portable mobile and media devices have become a ubiquitous part of children's lives and may affect their sleep duration and quality. Objective: To conduct a systematic review and meta-analysis to examine whether there is an association between portable screen-based media device (eg, cell phones and tablet devices) access or use in the sleep environment and sleep outcomes. Data Sources: A search strategy consisting of gray literature and 24 Medical Subject Headings was developed in Ovid MEDLINE and adapted for other databases between January 1, 2011, and June 15, 2015. Searches of the published literature were conducted across 12 databases. No language restriction was applied. Study Selection: The analysis included randomized clinical trials, cohort studies, and cross-sectional study designs. Inclusion criteria were studies of school-age children between 6 and 19 years. Exclusion criteria were studies of stationary exposures, such as televisions or desktop or personal computers, or studies investigating electromagnetic radiation. Data Extraction and Synthesis: Of 467 studies identified, 20 cross-sectional studies were assessed for methodological quality. Two reviewers independently extracted data. Main Outcomes and Measures: The primary outcomes were inadequate sleep quantity, poor sleep quality, and excessive daytime sleepiness, studied according to an a priori protocol. Results: Twenty studies were included, and their quality was assessed. The studies involved 125 198 children (mean [SD] age, 14.5 [2.2] years; 50.1% male). There was a strong and consistent association between bedtime media device use and inadequate sleep quantity (odds ratio [OR], 2.17; 95% CI, 1.42-3.32) (P < .001, I2 = 90%), poor sleep quality (OR, 1.46; 95% CI, 1.14-1.88) (P = .003, I2 = 76%), and excessive daytime sleepiness (OR, 2.72; 95% CI, 1.32-5.61) (P = .007, I2 = 50%). In addition, children who had access to (but did not use) media devices at night were more likely to have inadequate sleep quantity (OR, 1.79; 95% CI, 1.39-2.31) (P < .001, I2 = 64%), poor sleep quality (OR, 1.53; 95% CI, 1.11-2.10) (P = .009, I2 = 74%), and excessive daytime sleepiness (OR, 2.27; 95% CI, 1.54-3.35) (P < .001, I2 = 24%). Conclusions and Relevance: To date, this study is the first systematic review and meta-analysis of the association of access to and the use of media devices with sleep outcomes. Bedtime access to and use of a media device were significantly associated with the following: inadequate sleep quantity, poor sleep quality, and excessive daytime sleepiness. An integrated approach among teachers, health care professionals, and parents is required to minimize device access at bedtime, and future research is needed to evaluate the influence of the devices on sleep hygiene and outcomes.

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Crossref · 10.1001/jamapediatrics.2016.2341

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  • Incoming alerts, ringers, and notifications can occur at any sleep stage and potentially disrupt natural sleep progression and REM cycles.

    “Incoming alerts, ringers, and notifications can occur at any stage of sleep, with the potential to disrupt natural sleep progression and REM cycles.208”

    From Digital Ecosystems, Children, and Adolescents: Technical Report (2026) · cites this paper as [208]

    The Introduction (page unavailable) says devices may interrupt sleep, and the Discussion’s summary of findings (page unavailable) associates bedroom device presence with poor sleep outcomes. The paper does not identify alerts, ringers, or notifications as the cause of interruptions, or discuss interruptions at any sleep stage or effects on REM cycles. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • The evidence on which guidelines to stop using screens 1 to 2 hours before bedtime are based largely comes from cross-sectional studies with many inherent limitations.

    “Moreover, the evidence on which these guidelines are based largely comes from cross-sectional studies with many inherent limitations.2,10,11,12”

    From Screen Use at Bedtime and Sleep Duration and Quality Among Youths (2024) · cites this paper as [10]

    The Abstract’s Study Selection section says the review assessed 20 cross-sectional studies, and the Discussion’s Summary of findings identifies limitations inherent to observational designs, including difficulty establishing causality. The paper supports reducing device use at bedtime, but our copy does not establish that the evidence specifically underpins a guideline to stop screen use 1 to 2 hours beforehand. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Short-wavelength light on the preceding evening reduced next-morning alertness because its alerting effects in the evening may have interfered with the subsequent sleep.

    “Thus, short-wavelength light on the preceding evening reduced next-morning alertness because its alerting effects in the evening may have interfered with the subsequent sleep.”

    From Preliminary Results: The Impact of Smartphone Use and Short-Wavelength Light during the Evening on Circadian Rhythm, Sleep and Alertness (2021) · cites this paper as [40]

    The Results (page unavailable) associate bedtime media-device use with poorer sleep and increased daytime sleepiness in children. They do not establish that short-wavelength light reduced next-morning alertness or that evening alerting effects caused sleep interference. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Teens who kept devices in bedrooms but did not access them still experienced inadequate or poor sleep quality and excessive daytime sleepiness.

    “Indeed, even teens who kept their devices in their bedrooms but did not access them experienced inadequate or poor sleep quality and excessive daytime sleepiness.208”
  • Heterogeneity exceeding 85% was explored using subgroup analyses.

    “Heterogeneity exceeding 85% was explored using subgroup analyses [23].”

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Authors
Carter, B., Rees, P., Hale, L., Bhattacharjee, D., & Paradkar, M. S.
Affiliations
  • University of Nottingham (GB)
  • University College London (GB)
  • Stony Brook School (US)
  • University Hospital of Wales (GB)
  • Johns Hopkins University (US)
Corresponding author
Carter, Ben
Venue
JAMA Pediatrics
Published
2016-12-01
Volume
170
Issue
12
Pages
1202
ISSN
  • 1072-4710 (ISSN-L)
  • 2168-6203
OpenAlex
W2548384288
Cited by
718
References
42
Citations by year
2026: 128 · 2025: 89 · 2024: 80 · 2023: 71 · 2022: 93 · 2021: 81 · 2020: 61 · 2019: 53 · 2018: 38 · 2017: 24
FWCI
5.03
Type
journal article
Language
en
Open access
Locations
  • Archives of Pediatrics and Adolescent Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (acceptedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion, other-oa)
Funders
  • Johns Hopkins University
  • University College London
  • University of Nottingham
  • Stony Brook University
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD073352)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Education › Child Development and Digital Technology
  • Social Sciences › Sociology and Political Science › Impact of Technology on Adolescents
Keywords
children's sleep, sleep duration, sleep quality, excessive daytime sleepiness, mobile devices, tablets, sleep environment, screen time, elementary school students, sleep deprivation
MeSH terms
Adolescent, Child, Cross-Sectional Studies, Female, Humans, Male, Sleep, Sleep Wake Disorders, Computers, Handheld, Cell Phone, Young Adult

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