Brief Group Acceptance and Commitment Therapy for Adults with Chronic Insomnia A Randomized Controlled Study Comparing ACT-i to Attentional Control

What this Trial Is About

This research evaluates the effects of a brief Acceptance and Commitment Therapy for Insomnia ACT-i compared to an attentional control group in adults aged 18 to 59 with chronic insomnia. The study investigates how these group-based interventions impact insomnia severity, cognitive function, depression, anxiety, psychological flexibility, and beliefs about sleep. The trial aims to address the limitations of current treatments like Cognitive-Behavioral Therapy for Insomnia, especially for those who do not fully respond or adhere to it. Participants are randomly assigned to either the ACT-i group or an attentional control group. Both interventions are delivered online in two group sessions lasting approximately 120 minutes each, once per week for two consecutive weeks. The ACT-i sessions include psychoeducation, mindfulness, values, and acceptance strategies, while the control sessions focus on general topics without psychological guidance. Facilitators are trained mental health professionals, and sessions include handouts and homework. During the study, participants complete assessments before treatment, two weeks after the intervention, and at a three-month follow-up. These assessments measure insomnia severity using the Insomnia Severity Index, as well as depression, anxiety, cognitive functioning, psychological flexibility, and sleep beliefs. Participants also provide feedback on their adherence and satisfaction with the interventions. The total participation spans from initial screening through to the three-month follow-up evaluations.

Brief Trial of ACT-i for Adults With Chronic Insomnia