Right there with you on the sleep issue, Gene. The last week or so I've been sleeping at like 2-4 in the morning, only to wake up at 8 and start the process over. This really affects my mood, makes me a fun guy to be around the next day... Funny thing is, the one or two days I have gotten proper sleep, I've felt real good the next day...
Anywho, about getting sleep back on track...meds don't work for me either. For me, this is due to the fact that I have an addictive personality, so I begin relying on the meds. One thing I have noticed when I don't take meds, is that I have sleep zones. By that I mean I can sleep, so long as I go to bed at certain times, for me it's 8pm and 11pm. If I don't go to bed at these times, I have to wait for the next timezone, which is somewhere around 2-4am.
Not sure if this helps in any way, but maybe you have "sleep zones", too? Times where it's easier to sleep then others? It may not always help you sleep, but give you an expectation to what your up against for the night.