Methods: This project will be conducted in outpatient clinics of the VA Greater Los Angeles Healthcare System. Community-dwelling older veterans (aged 60 years and older) with insomnia will be identified by a postal survey. Enrolled veterans with insomnia (N=150, 50 per group) will be randomized to one of three groups:Individual Cognitive Behavioral Therapy for Insomnia (Individual-CBTI), Group-CBTI, or group-based Sleep Education Control Condition (Control). The intervention involves a manual-based behavioral sleep intervention provided by health educators. Baseline data will include subjective and objective measures of sleep, and structured assessments of depression and quality of life. Post-treatment assessments will be performed after completion of the 6-week intervention, and follow-up assessments will be performed at 6-months and 12-months follow-up. Main outcome measures will include sleep/wake patterns (sleep questionnaires and wrist actigraphy), depression and self-reported quality of life. Data will be analyzed for all randomized participants in an intention to treat analysis. We hypothesize that the intervention will improve sleep (both objectively and subjectively) and will improve depressive symptoms and quality of life at six months follow-up. We also expect that these improvements will be maintained at 12-months follow-up.