【Objective】 To assess the efficacy of partner-assisted behavioral treatment to improve treatment adherence and sleep quality.【Methods】 64 adults with chronic insomnia and common comorbidities were recruited and given behavioral treatment for 4 weeks. Participants were randomly assigned to either intervention group(IG

n = 32) or control group(CG

n = 32). Bed partners of the patients in intervention group were integrated into the treatment. The primary outcome was self-report symptom

based on Pittsburgh Sleep Quality Index(PSQI) and sleep diaries(including Sleep Latency-SL

Wake after Sleep Onset-WASO

Total Sleep Time-TST

Sleep Efficiency-SE) which were evaluated on baseline and at the end of the 2th

4th week treatment. Continuous variables were evaluated by repeated-measures multivariate analyses of variance (MANOVA). Adherence to each therapeutic element was scored post-treatment by visual analog on a 100-mm line.【Results】 The MANOVA showed a significant treatment group×time interaction

as well as time main effects for PSQI

SL

SE and WASO. The patients in intervention group made better improvements than those in control group

the difference was significant

P < 0.05

effect sizes were 0.76

0.62

0.93

0.70 respectively. 【Conclusion】 Partner-assisted behavioral treatment is an efficacious intervention for chronic insomnia to improve their adherence to the treatment and enhance the curative effect.