The goal of this clinical trial is to evaluate the feasibility, acceptability, and preliminary effects of a virtual reality (VR) relaxation intervention among adults aged 25 to 50 with insomnia disorder.
The main questions this study aims to address are:
* Is a VR relaxation intervention feasible to implement and acceptable for individuals with insomnia?
* Does the intervention reduce pre-sleep cognitive and somatic arousal?
* Does the intervention improve sleep quality and sleep depth?
* Can the intervention enhance overall sleep health and reduce symptoms of insomnia, anxiety, and depression?
* Are these potential benefits maintained at a 3-month follow-up?
Participants will be randomly assigned to either the intervention group or a waitlist control group. Researchers will compare outcomes between groups to evaluate the impact of the intervention.
Participants will:
* Complete online questionnaires at three time points (baseline, post-intervention, and 3-month follow-up) assessing sleep health, pre-sleep arousal, and symptoms of insomnia, anxiety, and depression
* Take part in an in-person diagnostic interview at Université Laval to assess sleep and mental health status
* Complete a daily online sleep diary for 8 weeks (2 weeks baseline, 4 weeks intervention, and 2 weeks post-intervention)
* Engage in a 15-minute VR-guided meditation session each evening at home for 4 weeks
* Wear a portable sleep monitor at home for 8 nights (4 nights baseline and 4 nights post-intervention)
* Complete an acceptability questionnaire following the intervention