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Cognitive behavioral therapy for insomnia among heavy-drinking veterans: a randomized pilot trial
Journal article   Open access   Peer reviewed

Cognitive behavioral therapy for insomnia among heavy-drinking veterans: a randomized pilot trial

Mary Beth Miller, Ryan W Carpenter, Sydney D Shoemaker, Katie R Moskal, Brian Borsari, Eric R Pedersen, Bruce D Bartholow, Douglas Steinley and Christina S McCrae
Sleep advances, Vol.6(2), zpaf037
04/2025
DOI: 10.1093/sleepadvances/zpaf037
PMCID: PMC12199704
PMID: 40575624
url
https://doi.org/10.1093/sleepadvances/zpaf037View
Published (Version of record) Open Access

Abstract

Study Objectives Two in five Veterans report symptoms of insomnia, with higher rates among those who drink heavily. Although Cognitive Behavioral Therapy for Insomnia (CBT-I) has demonstrated efficacy among those with Alcohol Use Disorder, abstinence is often considered a prerequisite for treatment, leaving its impact unclear among those who are actively drinking. This trial tested the efficacy of CBT-I among heavy-drinking Veterans with insomnia (#NCT03804788). Methods Veterans from across the United States were randomly assigned to CBT-I or sleep hygiene control. Participants completed retrospective surveys and 14 sleep diaries at baseline, post-treatment, and 3-month follow-up. Primary outcomes were feasibility and insomnia severity. All other outcomes are secondary/exploratory. Intent-to-treat analyses were conducted using multilevel models. Results Recruitment spanned June 2019 to March 2023 (N = 71, 80% male, M = 38 years). On average, we recruited 4 participants per month, with retention of 86% at post-treatment and 90% at follow-up. Of 38 CBT-I participants, 33 (87%) completed all 5 treatment sessions, and most responded to treatment (based on change in outcome scores; 22/38 at post, 27/38 at follow-up). Relative to control (n = 33), CBT-I participants reported large improvements in insomnia severity, both post-treatment [d = 1.26 (95% CI: 0.74, 1.76)] and at 3-month follow-up [d = 1.33 (95% CI: 0.81, 1.84)]. At follow-up, results for use of alcohol as a sleep aid [d = 0.66 (95% CI: 0.18, 1.14)] and sleep medication [d = 0.44 (95% CI: −0.03, 0.91)] also favored CBT-I. Conclusions CBT-I is feasible among heavy-drinking Veterans and has large effects on insomnia severity. Studies testing mechanistic effects on alcohol outcomes are warranted.
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