Hi gme109,
This at least indicates that there is a combination that produces good alignment for you without zoning and once you have good alignment then it’s usually possible to do some additional fine tuning for pressure relief and comfort with a mattress pad or a topper that is “enough” to provide the additional pressure relief you need but not so thick/soft that it affects alignment or in some cases by changing the mattress cover but of course this can also involve some trial and error.
If a zoned mattress is a good “match” for you then this type of fine tuning may not be necessary but it’s also a little more complex and specialized to find a zoned mattresses where the layers and the zones work well for a specific person. You’ve probably read this but just in case you haven’t there is more about the pros and cons of zoning in post #11 here and the posts it links to.
Warranties only cover defects in a mattress or the materials inside it and not the gradual loss of comfort and support that is the reason that most people need to replace a mattress and if a latex layer is defective then it will usually show up in the first year of ownership . There is more about warranties in post #174 here.
Phoenix