Hi Hummingbirdkrista,
Just in case you haven’t read this … the first place I would start is post #1 here which has all the basic information,m steps, and guidelines you will need to make the best possible choices.
As you can see in post #2 here there are really only 3 ways to match or approximate another mattress. In the case of the Savant the only realistic way would be with side by side testing with another mattress because it’s not likely that another manufacturer would try to duplicate its feel or design, have tested it against their own mattresses, or be familiar enough with how it performed and felt to use it as a guideline for their own mattresses (although you could always ask them). It’s usually more effective to try to evaluate every mattress you test against a common set of criteria rather than trying to match one mattress to another (unless a manufacturer specifically compares their mattress to another one that is available to you to test and in the case of memory foam this is usually a Tempurpedic which is the largest memory foam mattress manufacturer).
I think that most of the forum members that have purchased their 13" gel memory foam mattress and posted about their experience with it have agreed that it matches their description of being just a little firmer than the Cloud Luxe. Hopefully some of them will see this post and share their thoughts as well … although I would also keep in mind that “comfort” can be very subjective and not everyone will feel the same way on the same mattress.
I doubt that you will find any comparable mattresses in the big box stores but if you let me know your city or zip I’d be happy to let you know of the better options I’m aware of in your area and some of them may have some latex hybrid options or even some all latex mattresses that you can test,
Phoenix