Hi SleepyDan,
While it’s possible that you don’t like the resilience or “springiness” of latex (which would be a preference issue) … I would guess that the symptoms you are experiencing are more about the firmness and thickness of the layers in your mattress and topper and the overall design of your “sleeping system” and how well they “match” your body type and sleeping position than about latex itself.
Did you happen to try any of the suggestions in my previous reply?
It’s also possible that your pillow could be contributing to upper body soreness as well (possibly in combination with the thickness and softness of your toppers).
If I was in your shoes I would certainly do a little more experimentation with what you have available before buying another mattress.
I don’t think a database would be particularly helpful because each person’s “solution” would be unique to them and their own specific needs and preferences and there are many people that don’t fit inside the “averages” of other people. A mattress that would be “perfect” for one person may be completely unsuitable for someone else to sleep on … even if they have a similar body type, sleeping style, preferences, and circumstances.
Unfortunately there is no way for me to make specific suggestions or recommendations because the first “rule” of mattress shopping is to always remember that 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 that are unique to each person 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 or which type of mattress would be the best “match” for you in terms of “comfort” or PPP or how a mattress will “feel” to you or compare to another mattress based on specs (either yours or a mattress), sleeping positions, or “theory at a distance” that can possibly be more accurate than your own careful testing (hopefully using the testing guidelines in step 4 of the tutorial) or your own personal sleeping experience (see mattress firmness/comfort levels in post #2 here).
If you do well on hotel beds in general then it may be worth considering an innerspring mattress (possibly a pocket coil) that uses good quality comfort layers in an appropriate type, thickness, and firmness because it may be closer to the type of mattress that you are familiar with and that your body is used to.
As you mentioned … if you are uncertain whether a specific mattress will be suitable for you or you aren’t confident that your testing in a showroom will predict your sleeping experience (or you are buying a mattress that you can’t test before a purchase) then the exchange or return options can be one of the most important parts of the “value” of a mattress purchase.
Phoenix