Hi PPC,
There are actually a fair number of choices in terms of latex in the Huntsville area and the better options or possibilities I know of are listed in post #2 here.
Latex and memory foam are very different materials and the layering of your mattress would be very different from a typical latex mattress as well (in the case of the Stearns & Foster they don’t provide any meaningful information about their layers) so the only way to really “match” a latex mattress to your current sleeping combination would be by personal testing and feel alone. Even then, because of the differences in layering and materials … this would also be an approximation at best.
If you are looking at latex mattresses … I would tend to match them against your more objective needs and preferences (such as those listed in post #2 here) rather than trying to match it to a more subjective “feel” of a completely different mattress that uses very different materials. You can also read more about the difficulties of “mattress matching” even with similar materials in post #2 here. Even with memory foam … there are hundreds of different types that can feel and respond very differently from each other.
The bottom line is that memory foam will never feel like latex even though both can provide the necessary pressure relief and spinal alignment in a layering that is appropriate for an particular person.
If it is practical for you … I would suggest a phone call or a trip to Pelham to visit Tom at Royal Bedding. I think highly of them and they make some high quality/value latex mattresses. If this is not practical then I look at some of the more local options that are listed.
Phoenix