My previous psych prescribed me a variety of things for insomnia- trazodone, seroquel, and ambien when nothing over the counter helped (e.g. benadryl, melatonin, and somethi else I forget). Sadly, none of the prescription stuff helped either :/ In my case, it was my SSRIs causi the sleep probs, which is why I went off of them for a year after trying different ones. (Eventually found one that worked and didn't keep me up). Sorry for the details, but basically it was super easy for me to get sleep meds. I'd really try someone else if OTC remedies don't work.