Cognitive Behavioral Therapy and Trazodone Effects on Sleep and Blood Pressure in Insomnia

This trial is comparing two treatments for chronic insomnia — cognitive behavioral therapy for insomnia (CBT-I, a talking therapy that helps change thoughts and habits around sleep) and trazodone (a medication) — to see which is more effective for sleep and also for blood pressure. Many people with insomnia also have elevated blood pressure. **You may be eligible if...** - You are 18 years or older - You meet diagnostic criteria for chronic insomnia - You can read and communicate effectively in English (or French at the Canadian site) - Your BMI is 18.5 kg/m² or higher **You may NOT be eligible if...** - You have a lifetime diagnosis of psychotic disorder or bipolar disorder - You have severe untreated sleep apnea (a condition where breathing stops repeatedly during sleep) - You have narcolepsy, hypersomnia, or a circadian rhythm disorder (including night shift work) - You have unstable medical conditions making participation unsafe - You have had recent falls causing hospitalization or fractures - You are currently on chemotherapy or radiation therapy for cancer Talk to your doctor to see if this trial is right for you.