Thanks for the advice everett. I've tried melatonin. I don't know why but it dosen't work for me.
I really wish I had the answers. For now Lunesta is allowing me to get some needed sleep. I'm feeling better everyday. By better I mean stronger than I've been. Not sleepy during the day. I feel more like doing the things I need to do. And, as I stated earlier, my PD symptoms (tremor, gait problems, balance) seem to be getting better.

GregD