Acceptance and Commitment Therapy, Combined with Bedtime Restriction, versus Cognitive Behavioral Therapy for...

Area of Science:

• Behavioral Science
• Clinical Psychology
• Sleep Medicine

Background:

• Cognitive Behavioral Therapy for Insomnia (CBT-I) is a first-line treatment but has high nonresponse rates.
• Acceptance and Commitment Therapy (ACT) may address core insomnia pathways, offering potential for improved efficacy.
• Novel treatment developments are needed to enhance outcomes for insomnia disorder.

Purpose of the Study:

• To compare the efficacy of ACT for insomnia combined with bedtime restriction (ACT-I) against CBT-I.
• To evaluate improvements in insomnia severity and sleep-related quality of life.
• To assess the potential of ACT-I to enhance current insomnia treatments.

Main Methods:

• Sixty-three patients with insomnia disorder were randomized to receive either ACT-I or CBT-I in a group format.
• Primary outcomes included insomnia severity (Insomnia Severity Index) and sleep-related quality of life (Glasgow Sleep Impact Index).
• Assessments were conducted pre-treatment, post-treatment, and at 6-month follow-up.

Main Results:

• Both ACT-I and CBT-I showed significant, large improvements in insomnia severity and quality of life.
• These improvements were maintained at the 6-month follow-up.
• No significant differential efficacy was found between ACT-I and CBT-I, though ACT-I patients reported higher satisfaction with certain health aspects.

Conclusions:

• ACT-I is a feasible and effective treatment for insomnia, comparable to CBT-I.
• Further research is required to establish noninferiority and explore mechanisms of change for both treatments.
• While not superior, ACT-I shows promise and may offer specific patient benefits in satisfaction.