NCT06972303

Brief Summary

The investigators will conduct a 3-arm, pilot RCT where participants (N=30) will be randomized in a 1:1:1 design to 4 weeks of instructed bedtime MM practice at night (n=10) vs. uninstructed MM (n=10) vs. sleep hygiene education only (n=10). Aim 1 is to understand the feasibility and acceptability of the intervention and study procedures. Aim 2 is to explore patterns of within-group changes in sleep outcomes (i.e., insomnia severity and sleep quality). Patient-reported outcomes will be collected using a HIPAA-compliant electronic data management system (REDCap). Following informed consent, participants will receive links to REDCap surveys via email at Weeks 0, 4, 8, and 16. The investigators will also conduct a post-intervention interview at the end of Week 4 and an exit interview at Week 16. All participants will also receive a research kit with wearable devices and meet with our staff after they receive the kit for instructions. Data collected in the pilot RCT will help us to preliminarily identify tools for subjective measures and physiological signals to inform a future trial.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at P25-P50 for phase_1

Timeline
32mo left

Started Feb 2026

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress9%
Feb 2026Dec 2028

First Submitted

Initial submission to the registry

April 29, 2025

Completed
16 days until next milestone

First Posted

Study publicly available on registry

May 15, 2025

Completed
9 months until next milestone

Study Start

First participant enrolled

February 1, 2026

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2028

Expected
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 29, 2028

Last Updated

February 25, 2026

Status Verified

February 1, 2026

Enrollment Period

2.5 years

First QC Date

April 29, 2025

Last Update Submit

February 24, 2026

Conditions

Outcome Measures

Primary Outcomes (5)

  • Screened-to-eligible ratio

    The proportion of screened participants who were determined to be eligible for the study; calculated as the number of eligible participants divided by the total number of individuals screened.

    Week 0

  • Retention rate

    Retention rate is defined as the percentage of participants who complete the entire follow-up period. Reasons for participant dropout will also be documented.

    Weeks 4, 8, and 16

  • Adherence to intervention protocol

    In the intervention groups, a mindfulness meditation session ≥ 10 minutes will be considered as a completed session. Numbers of sessions completed during the four weeks will be recorded. Adherence to intervention protocol will be defined as those randomized to the intervention groups complete ≥ 70% of home practice.

    Week 4

  • Compliance with outcome assessment

    Compliance with outcome assessment will be determined by the percentage of participants who complete ≥ 70% of questionnaires at each time point.

    Weeks 0, 4, 8, 16

  • Acceptability

    At intervention end (week 4), a brief questionnaire will ask participants to rate (1=not at all to 5=very much) the enjoyableness, convenience, helpfulness, and overall satisfaction with the app-based mindfulness practice. Acceptability is assessed by self-report survey ratings, and a threshold of 80% ratings of 4 or higher will indicate acceptability.

    Week 4

Secondary Outcomes (2)

  • Insomnia severity

    Weeks 0, 4, 8, 16

  • Sleep quality

    Weeks 0, 4, 8, 16

Study Arms (3)

Instructed bedtime app-guided mindfulness meditation

EXPERIMENTAL

Participants will utilize the specific sleep program available within the app, which will include a choice of audio soundtracks for guided MM (no exposure to screen lights during practice). The practice may involve techniques such as breathing exercise, imagery, body scan, and relaxation. Participants will specifically use the app during the immediate pre-sleep period. They can choose their preferred meditation sessions within the Sleep menu in Week 1-4.

Behavioral: Instructed bedtime app-guided mindfulness meditationBehavioral: Sleep hygiene education

Uninstructed app-guided mindfulness meditation

EXPERIMENTAL

Participants will be asked to practice MM using the same app during daytime (prior to the evening meal), but without specific study instructions around components to access or specific time of practice.

Behavioral: Uninstructed app-guided mindfulness meditationBehavioral: Sleep hygiene education

Sleep Hygiene Education only

OTHER

Participants will receive sleep hygiene education and asked not to start any new insomnia treatments. Sleep hygiene education serves as a minimal intervention control condition and real-world comparator. At the end of the study, interested participants in the control group will be given equal access to the mobile app. Usual care for insomnia typically involves sleep hygiene education, so all three groups will receive standard SHE as part of usual care.

Behavioral: Sleep hygiene education

Interventions

The guided mindfulness meditation practice will also be based on the same app. The investigators will not provide instructions for participants, and they have complete freedom to use the app as real-world users.

Uninstructed app-guided mindfulness meditation

Sleep hygiene education will be based on recognized, general, non-personalized sleep hygiene advice, for example, recommendations about bedtime routines and use of alcohol and caffeine, tips on creating a sleep-conducive bedroom environment.

Instructed bedtime app-guided mindfulness meditationSleep Hygiene Education onlyUninstructed app-guided mindfulness meditation

All participants will access the a smartphone app, and the mindfulness meditation practice may involve techniques such as breathing exercise, imagery, body scan, and relaxation. The investigators will provide instructions for participants who are assigned to practice at bedtime.

Also known as: Uninstructed bedtime app-guided mindfulness meditation, Sleep hygiene education
Instructed bedtime app-guided mindfulness meditation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 years and older;
  • Chronic insomnia (≥ 3 nights/week, for ≥ 3 months), defined by DSM-V or ICSD-3;
  • Have a primary complaint of difficulty falling asleep (sleep-onset insomnia) with self-reported sleep onset latency \>20 min;
  • Insomnia Severity Index score ≥ 15;
  • Speak and understand English;
  • Have a smart device (phone or tablet) for mobile app installation

You may not qualify if:

  • Current diagnosis of sleep disorders other than insomnia (e.g., narcolepsy, restless leg syndrome, REM sleep behavior disorder, etc.);
  • Shift worker or routine night shifts;
  • Women with pregnancy or breastfeeding;
  • Regular (defined as twice a week or more) practice of mind-body interventions;
  • Patients with pace-maker or routinely using cardiovascular medications that have effects on heart rates (i.e., beta-blockers);
  • Neurological disorders (e.g. epilepsy, dementia, stroke, Parkinson's disease, neuroinfections, brain tumors, etc.) or current diagnosis of comorbid psychotic, substance use, and trauma-related disorders;
  • Currently under medications with sleep changing effects (e.g., anxiolytics/benzodiazepines, selective serotonin reuptake inhibitors, hypnotics, etc.);
  • Hearing impairment or loss. Participants will be asked to report any medication for at least 2 weeks prior to study onset and during the study period.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02215, United States

RECRUITING

MeSH Terms

Conditions

Sleep Initiation and Maintenance Disorders

Condition Hierarchy (Ancestors)

Sleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental Disorders

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Instructor

Study Record Dates

First Submitted

April 29, 2025

First Posted

May 15, 2025

Study Start

February 1, 2026

Primary Completion (Estimated)

July 31, 2028

Study Completion (Estimated)

December 29, 2028

Last Updated

February 25, 2026

Record last verified: 2026-02

Locations