Hi tydefan,
I think that post #2 here may be of help 
In particular … Jamison is a regional manufacturer which makes some good quality Talalay latex mattresses both in “all latex” versions and in hybrid latex/polyfoam versions (like the Spring Air).
You can check the Jamison website for outlets close to you (with your zip code) but I did talk to Butlers Home Furnishings in Athens and they carry a range of the Jamison latex on their floor. the person I talked to also is very informed about mattress construction and materials which I liked. They would be well worth a call and possibly a trip if you are close enough. They don’t have a website
http://universityfurnituregallery.com/ in Huntsville also carries a wide range of Jamison (over 20 models) on their floor including latex and their gel memory foam. Most of these are likely to be more traditional mattresses rather than memory foam or latex specialty mattresses.
Lily Flag Furniture in Huntsville also carries Jamison (As well as Symbol both of which are made in the region) but they don’t have any on the floor. They also seemed to be quite knowledgeable and do provide a cutaway of the layering for them though and can order any of their mattresses. They also don’t have a website.
I would probably suggest a bit of phone work to get a sense of prices and the “feel” of the outlet itself (for these and any of the the other options in the other linked threads that catch your interest) which will make it much easier to decide if they are worth a trip for those that are further away. The goal is to find outlets that are more focused on heping to “educate” you than they are focused on just “selling” you.
In addition to the Spring Air, you have some good choices both locally and within reasonable driving distance.
Phoenix