Pugsy,
Looks like I'm coming in near the end of this thread, but wanted to offer you (and others who may be interested) a few things. I'm still a bit of a newbie and don't feel I have much technical OSA info to offer at this point, but I'm learning a lot from all of you.
First, I just received from Overstock.com a new E.C.O. 2-inch latex mattress topper ($150). I'm putting it on my bed in a while and will sleep on it for the first time tonight. Will let you know how it goes. You may remember me from an earlier post I made about some of my issues (I think back pain was one of them). So the topper is one of my attempts to address the back pain. It has been an ongoing issue for years. I don't think my pain is inflammatory, as yours is. Instead, it seems to be more about muscle tension. My 10-11 year-old mattress really is a bit harder than I'd like, and I need to replace it, but can't swing it financially right now. At any rate, I expect it's contributing to the pain and I'm hoping the topper will help.
Second, when I can afford a new mattress, I'm thinking I might get a Comfortaire mattress. Sounds like they are equal in quality to the Sleep-by-Number beds, but cheaper. I think they sell online only, so that may be the reason they're cheaper (less overhead). Go to
http://www.comfortairdirect.com. I priced a mattress last week (a low-end model) for about $700 (mattress only w/out foundation). I think they were having a sale. Don't know if it's still on.
Third, check out this web site for info and reviews on mattresses and toppers:
http://sleeplikethedead.com/. I ran across this site last week after stumbling onto a YouTube video on mattresses.
Fourth, some time ago I ran across a natural product in the Chapel Hill, NC Whole Foods that might be helpful for your inflammatory pain. I was looking for something for my sister, who has pain issues, and I actually bought her a bottle. I don't think she tried it, though, because she was afraid it would interact with some of her other meds. So I can't offer any real feedback on its effectiveness. The product is called Itis Care and is made by a company called Narula Research. While doing a Google search, I ran across a recent article in the Chapel Hill newspaper:
http://www.chapelhillnews.com/news/story/51282.html. Not sure if Whole Foods would carry this at every outlet, but you could check it out. According to the article, it is sold at other natural foods outlets. Might be worth a look. I think I remember it is a bit pricey--maybe around $35. You can read about turmeric and its role in reducing inflammation on this web site:
http://www.wholehealthmd.com
Hope this might help you, or someone else out there. Many of you have been really helpful to me. Will update you all in another post soon.