I had taken Ambien CR for months until my insurance stopped covering it. It worked very well. My problem was that I could not stay asleep all night. I did not take it every single night in fear that I may become addicted to it. I did not have any of the side affects like sleep walking or anything...I personally would NOT take it with Benedryl...I think they both cause sleepiness. Another thing,, I did not feel druged in the morning with Ambien like you can with Benedryl.