I avoid sleeping at nights. My trauma had occurred during the hours between 6 pm until about 11 am. My mind could even override the effects of the sleep medications. It happens to me because of fear. Possibly why your avoiding taking the medications. Make the place where you sleep a safe environment. Get an alarm system if need be. Until I was able to conquer the fear I couldn't sleep no matter what until exhaustion took over.

Hope this has helped.