Veterans with PTSD often struggle with insomnia, which means they have trouble sleeping or have frequent nightmares. This study aims to find out if two medications, trazodone and eszopiclone, can help. PTSD stands for Post-Traumatic Stress Disorder, a type of strong anxiety that can happen after a very stressful event. Symptoms include bad dreams, feeling angry, and having a hard time focusing. The study compares these medications to a placebo, a pill with no medicine in it, to see if they help with sleep. It's a 12-week study with different groups trying different treatments. Researchers will check how well each treatment works using something called the Insomnia Severity Index (ISI). Veterans can join if they're 18 to 75 years old and have PTSD from military service. Participants must agree to follow study rules and be available for 17 weeks. They can't join if they're in another study or have had certain medical issues recently. This research helps find better ways to treat sleep problems in Veterans with PTSD.

• The study lasts about 17 weeks including screening and assessment.
• Participants will receive either trazodone, eszopiclone, or a placebo.
• The study aims to improve sleep quality in Veterans with PTSD.