I need some damn sleep

I've always had a problem sleeping but usually I can get a good night's sleep after I take my sleeping pills. Trazadone. The last week however I can't sleep at all. Last night I took 3 trazadone's and a muscle relaxer but still didn't sleep. I don't know what the problem is. I have an app't Friday with the shrink at VA, hopefully she can prescribe me something.