Hi Bingley,
The better options in the Louisville area are listed in post #3 here.
The Lexington list is at the end of post #3 here
The Cincinnati list is in post #212 here.
The Indianapolis list is in post #2 here.
A number of these carry all latex mattresses and latex hybrids (which would also give you a good sense of the “feel” of latex) although most of them are blended Talalay but some of them that carry Pure latex Bliss may be able to order you the equivalent in 100% natural Talalay if that is a strong preference although the cost would be greater.
There is also more information about adjustable beds and several retailers that I use as a 'value reference" in the adjustable bed thread here.
Phoenix