Trial reportJournal of child psychology and psychiatry, and allied disciplines2023
The effects of a sleep-focused smartphone application on insomnia and depressive symptoms: a randomised controlled trial and mediation analysis.
Trial report in Journal of child psychology and psychiatry, and allied disciplines, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 6 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- Comparative Effects of Various Modalities of Cognitive Behavioral Therapy for Insomnia in Adolescents: A Systematic Review and Network Meta-Analysis.Worldviews on evidence-based nursing · 2026Pooled it
- Effectiveness of current digital cognitive behavioural therapy for insomnia interventions for adolescents with insomnia symptoms: A systematic review and meta-analysis.Journal of sleep research · 2025Pooled it
- Effects of Digital Sleep Interventions on Sleep Among College Students and Young Adults: Systematic Review and Meta-Analysis.Journal of medical Internet research · 2025Pooled it
- Effectiveness of mHealth interventions targeting physical activity, sedentary behaviour, sleep or nutrition on emotional, behavioural and eating disorders in adolescents: a systematic review and meta-analysis.Frontiers in digital health · 2025Pooled it
- Personalization variables in digital mental health interventions for depression and anxiety in adolescents and youth: a scoping review.Frontiers in digital health · 2025Pooled it
- Mobile applications in adolescent psychotherapy during the COVID-19 pandemic: a systematic review.Frontiers in public health · 2024Pooled it
- Brief digital narrative intervention for adolescent depression, anxiety, and insomnia during academic stress: a cluster randomized controlled trial.BMC medicine · 2026Trial
- Negative interpretation bias and repetitive negative thinking as mechanisms in the association between insomnia and depression in young adults.The British journal of clinical psychology · 2026Article
- Pilot Study and Evaluation of a Sleep Health Education Program for Early High School.The Journal of school health · 2026Article
- Assessing the Feasibility, Usability, Acceptability, and Efficacy of an AI Chatbot for Sleep Promotion: Quasi-Experimental Study.JMIR formative research · 2026Article
- Digital Ecosystems, Children, and Adolescents: Technical Report.Pediatrics · 2026Review
- Digital treatment for insomnia in adolescents: study protocol for a randomized controlled trial comparing digital cognitive behavioral therapy for insomnia to sleep hygiene.Frontiers in child and adolescent psychiatry · 2026Article
- Management of adult insomnia in Australia: a joint position statement of the Australasian Sleep Association, Sleep Health Foundation, Royal Australian College of General Practitioners, Australian Psychological Society, Pharmaceutical Society of Australia, and Australian Primary Health Care Nurses Association.Sleep advances : a journal of the Sleep Research Society · 2026Review
- Evaluation and treatment of sleep disorders in adolescents with depression; a scoping review.BMC psychiatry · 2025Article
- Active components in digital health interventions for sleep among adolescents: a systematic review and meta-analysis of randomized controlled trials.NPJ digital medicine · 2025Article
- The effect of a universal mobile application on adolescents' mental health and well-being.Internet interventions · 2025Article
- Integrative Management of Acupuncture for Diminished Ovarian Reserve with Insomnia: Study Protocol for a Prospective Randomized Controlled Trial.International journal of women's health · 2025Article
- Individual, social, and environmental predictors of insomnia symptom trajectories in a population cohort of Australian adolescents aged 13 to 17 years.Sleep advances : a journal of the Sleep Research Society · 2025Article
- Sleep hygiene games and gamification: where are we and where are we heading?Frontiers in sleep · 2025Review
- Developmental links between ethnic and racial discrimination and sleep.Child development perspectives · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRates of depression are increasing among adolescents. A novel way to reduce depression is by improving sleep. We evaluated whether an app-based intervention for insomnia improved sleep and depression, and whether changes in insomnia mediated changes in depression.
methodsWe conducted a 2-arm single-blind randomised controlled trial at the Black Dog Institute in Australia. Adolescents 12-16 years experiencing insomnia symptoms were randomly allocated to receive Sleep Ninja, an app-delivered cognitive behavioural therapy program for insomnia, or to an active control group involving weekly text message sleep tips. Assessments took place at baseline, 6 weeks (post-intervention) and 14 weeks (post-baseline). Co-primary outcomes were symptoms of insomnia and depression at post-intervention (primary endpoint). Intent-to-treat analyses were conducted. The trial is registered with the Australian and New Zealand Clinical Trials Registry, number ACTRN12619001462178.
resultsBetween October 25, 2019, and September 6, 2020, 264 participants were randomised to receive Sleep Ninja (n = 131) or to the control group (n = 133). Relative to the control group, those allocated to the intervention reported a greater reduction in insomnia symptoms at 6 weeks (95% CI: -2.96 to -0.41, d = .41) and 14 weeks (95% CI: -3.34 to -0.19, d = .39), and a greater reduction in depression symptoms at 6 weeks (95% CI: -3.46 to -0.56, d = .28) but not 14 weeks (p < 1). Change in insomnia mediated change in depression. No adverse events were reported.
conclusionsAn app-delivered program for insomnia could be a practical, non-stigmatising and scalable way to reduce symptoms of insomnia and depression among adolescents experiencing difficulties getting enough good quality sleep.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.