Hi Dawn! So sorry to hear about the RSD, and especially not being able to sleep. I find that is almost the worst part of having RSD besides the pain.
I am now trying ambian. Was a little afraid of it at first, but am getting a solid 4 to 5 hours of sleep with it. So far it is the only thing that has worked. Have tried many many different things too.
I hope you finally find a way to get a few hours.