What it isA structured 6-8 session psychological treatment for chronic insomnia that addresses the thoughts and behaviors perpetuating poor sleep, without medication. It is the first-line recommended treatment for insomnia disorder, including in veterans.

Why it mattersCBT-I is the most effective long-term treatment for insomnia, superior to sleep medications in head-to-head trials. For veterans, it is the VA/DoD guideline first-line recommendation for both insomnia and PTSD-related sleep disturbance.

Think of it like thisWhile a sleeping pill tries to force your brain offline, CBT-I teaches your brain when it is actually safe to shut down, retraining the threat-detection system that keeps veterans awake.

Cognitive Behavioral Therapy for Insomnia (CBT-I) is a multicomponent psychological intervention targeting the cognitive and behavioral factors that perpetuate insomnia disorder. Core components include sleep restriction, stimulus control, cognitive restructuring, relaxation training, and sleep hygiene education.

MechanismCBT-I works through several mechanisms: (1) Sleep restriction consolidates sleep drive by limiting time in bed, rebuilding homeostatic sleep pressure through adenosine accumulation; (2) Stimulus control re-associates the bed with sleepiness rather than wakefulness and anxiety; (3) Cognitive restructuring challenges catastrophic beliefs about sleep that maintain hyperarousal; (4) In PTSD populations, CBT-I partially addresses hypervigilance by gradually resetting the nervous system’s association between the sleep environment and threat.