Hi matwhich,
I don’t have any specific suggestions because you are the only one that can feel what you feel on a mattress and there are too many unknowns, variables, and personal preferences involved to use a formula or for anyone to be able to predict or make a specific suggestion or recommendation about which mattress or combination of materials and components would be the best “match” for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) or how a mattress will “feel” to you based on specs (either yours or a mattress) or “theory at a distance” that can possibly be more accurate than your own careful testing (using the testing guidelines in step 4 of the tutorial) and personal experience (see mattress firmness/comfort levels in post #2 here).
When you can’t test a mattress in person then the most reliable source of guidance is always a more detailed phone conversation with a knowledgeable and experienced retailer or manufacturer that has your best interests at heart and who can help “talk you through” the specifics of their mattresses and the options they have available that may be the best “match” for you based on the information you provide them, any local testing you have done or mattresses you have slept on and liked that they are familiar with, and the “averages” of other customers that are similar to you. They will know more about “matching” their specific mattress designs to different body types, sleeping positions, and preferences or even to other mattresses that they are familiar with than anyone else (including me).
There are some sources for innerspring/latex hybrids in post #2 here and the post it links to. Some of these may have some dealers in your area and some of them are also available online as well.
The better options or possibilities I’m aware of in and around the greater Los Angeles area (subject to the quality/value guidelines here) are also listed in post #2 here.
I don’t keep a record of the specific mattresses that each retailer/manufacturer carries on their floor (keeping up with the specifics of all the mattresses on the showroom floors of all the retailers or manufacturers that are listed throughout the hundreds of forum lists would be a bigger job than anyone could keep up with in a constantly changing market) but checking the websites and making some preliminary phone calls to the retailers/manufacturers that are on the list is always a good idea before you visit any store. This will tell you which of them carry mattresses that would meet your specific criteria, are transparent about their materials (ask them if they will provide you with the information listed here about some or all of their mattresses and then only test the ones where they can provide this information), and carry the type of mattresses that you are interested in testing in the budget range you are comfortable with. These initial calls will also give you a good indication of the type of knowledge and service you are likely to encounter at the stores you plan to visit as well and can save you a significant amount of time and frustration compared with waiting to find out whether to provide you with the information you need to make an informed choice until you actually visit them only to find out that they either can’t or won’t provide it.
Phoenix