Hi emmygreen,
I think you’ve probably seen this but just to make sure … the better options in and around the Orlando area I’m aware of are in post #2 here.
I would particularly suggest a visit to Fox Mattress as you are already considering. They are truly “mattress people” but you also have some other good choices in the area.
Taking your time is always the best way to go … and you won’t need quite as much “luck” as so many other people who don’t have the kind of knowledge, options and choices you have available to help you (or don’t know about it if they do and end up in chain stores or other mass market retailers) … but good luck anyway 
I’m looking forward to your feedback as your search and mattress testing continues.
Phoenix