Hi BG,
Thanks for the kind words … and welcome to the forum.
Just in case you haven’t read it yet … I would start with the mattress shopping tutorial here which has all the basic information, steps, and guidelines that can help you make the best possible choice … and know how and why to avoid the worst ones.
Once you’ve read some of the basics about mattresses and materials … then the better options and/or possibilities I’m aware of in the Atlanta area are listed in post #2 here.
Phoenix