Fibromyalgia and Melatonin?

I'm 21 years old, and I was diagnosed with Fibromyalgia Syndrome in June of 2006. I've tried just about everything for pain, including, but not limited to: Percocet, Celebrex, Vicodin, Naproxyn, Nortriptyline, Relafin, Flexeril, and others that I'm just too exhausted to name. I realize now that covering the pain when I'm losing sleep isn't really helping. I tend to wake up from about 3-8 times a night, depending. I find that when I'm sleeping at my boyfriend's house, I sleep a lot easier, because he rubs my back before I go to sleep…but I can't expect that everynight. So I'm wondering has anyone tried a melatonin supplement, and how has that worked for you? I tried it once when I was attending college, and found that it made me over sleep. Now that I'm no longer in school, and my job is later in the day, do you think I'd be ok with taking it? I no longer see my specialist, as I think he's an idiot, and am trying self-care.
Thanks for the help!
I'm not asking if melatonin will hurt me. Trust me, I'm WAY past that point. I'm asking if it's worth it to take the melatonin? I'm asking if it's worked for anyone, seeing as FMS and lack of sleep (or at least slow-wave sleep) are connected.
BTW, Martini's are disgusting.