A Randomized Controlled Trial to Examine the Feasibility and Preliminary Efficacy of a Digital Mindfulness-Based Therapy for Improving Insomnia Symptoms

Lucinda Kennett, Bei Bei, Melinda L. Jackson

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)


Objectives: Insomnia has widespread negative implications for health and well-being. Online delivery of mindfulness-based therapy for insomnia (MBTI) has not previously been evaluated. This study investigated the feasibility and preliminary efficacy of a digital MBTI program for improving insomnia symptoms. It was hypothesized that a 6-week digital MBTI program would reduce insomnia symptoms and pre-sleep arousal and improve mood, compared to a waitlist control condition. Methods: Twenty-seven participants (M = 29.44, SD = 11.97 years) experiencing insomnia symptoms (insomnia severity index [ISI] ≥ 8) were randomized to either a 6-week intervention or waitlist condition. Participants completed the ISI, pre-sleep arousal scale (PSAS), and the positive and negative affect schedule at baseline, mid-, and post-study. Feasibility was assessed across four domains (acceptability, implementation, practicality, and preliminary efficacy) using self-reports, attrition, program completions, and module completions. Results: Feasibility data for the intervention indicated that there was 22% attrition, and 79% of the modules were completed. There were significantly greater reductions in the severity of insomnia symptoms (p <.001) and both cognitive (p =.03) and somatic (p =.02) subscales of the PSAS, at post-intervention compared to the waitlist group. There were no significant group differences in mood. Conclusions: This study provides preliminary evidence of the feasibility and efficacy of a digital MBTI, which may assist in the broader dissemination of insomnia treatment. Trial Registration Australian and New Zealand Clinical Trials Registry: ACTRN12620000398909

Original languageEnglish
Pages (from-to)2460–2472
Number of pages13
Issue number10
Publication statusPublished - Oct 2021


  • Cognitive behavioral therapy for insomnia
  • Digital mindfulness-based therapy
  • Mood
  • Pre-sleep arousal
  • Sleep

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