Hi mer8735,
While I don’t have a list for the Oxford area … post #4 here includes the better options I know of in the Tupelo, MS area, post #2 here has the better options and possibilities I’m aware of in the Memphis area and post #57 here has the better options in the Birmingham area I know of. If you do go to Birmingham, I would particularly suggest a visit to Royal bedding because I think very highly of Tom the owner there and the mattresses he builds.
I have had some site maintenance and host provider issues issues today (for some reason there has been excess CPU usage and spikes that resulted in the site being shut down for a few hours earlier today) that may keep me busy for a day or two but if I have a chance I’ll also take a look in the Oxford area to see what may be available closer to where you are.
Hope this helps.
Phoenix
ADDED: I took a look around the Oxford area and the only store I could see that I would consider in the immediate area is …
http://gosnooze.com/ Oxford, MS. They carry Jamison mattresses which make a range of mattresses including latex and memory foam that would likely be better quality/value than the mattresses made by the major manufacturers that are available in the area.