Sleep initiation and maintenance problems are frequent and are associated with impairments in physical and psychological health. Although Cognitive-Behavioral Therapy (CBT) demonstrates effective results for sleep onset and maintenance disorders, there are those who do not respond to this type of intervention. Acceptance and Commitment Therapy (ACT) presents itself as an appropriate intervention for the treatment of insomnia, for which, instead of focusing on controlling the symptom, the respective approach focuses on accepting the feelings and thoughts associated, through value-based actions. Objective: The objective of this work is to review the national and international literature on the effectiveness of Acceptance and Commitment Therapy for Sleep Problems, especially insomnia. Method: This is a systematic review study that will follow the rules of the PRISMA Statement to be carried out in the electronic databases SCOPUS, Lilacs, PUBMED and PsycINFO, using the keywords: insomnia / sleep / sleep problems / sleep disturbances and Acceptance and Commitment Therapy. Studies that do not include interventions exclusively applied to insomnia and / or sleep problems, theoretical or review studies will be excluded.
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