Hi nola,
I’ll certainly do my best!
OK … this is certainly strange. The pamper is 1" (not 2") of 19 ILD over a 6" 40 ILD core over a 1" 50 ILD stabilization layer with a stretch knit cover.
The Jamison is 4" of the same 19 ILD talalay over 6" of 40 ILD over 2" of base polyfoam (ILD unknown but likely firm) with a stretch knit cover.
These are certainly very different and for almost everyone 4" of 19 ILD would feel very different from 1" of 19 ILD if the layers below them were very similar (which they are). I can understand why this would be confusing and quite frankly it is for me as well.
These two are quite different so I would likely be looking at other reasons to explain why they both felt similar and especially why the Jamison felt so firm when it has such a thick layer of very soft latex.
My first thought is that somehow the mattress was mislabeled and that you may not have been on 4" of 19 ILD. Regardless of what the mattress was on … it seems very strange to me that this felt firm. Jamison also describes their cover as a stretch knit so this wouldn’t account for it either. With your weight and height … it’s also very unlikely that you were going through the 4" enough to significantly feel the firmness of the 40 ILD below it. It almost seems closer to the Brilliance. Did you happen to look at the law tag?
On the other hand … the Pamper would feel very firm to almost all people with only an inch to separate you from the firmness of the 40 ILD layer. I can see that this would not be comfortable on your side but even so … it seems that “a little too much” would be understating this for most people and it makes me wonder what base it was on. If it was on the sealy abzzorber base (more about that later) or another base that flexed … this may have made it softer than it would have been on a rigid base that didn’t flex. This is the only way I can explain that this was only a little bit too firm on your side.
This too seems a little odd when compared to the Opulance because the nature has 2" of 19 ILD talalay over 1" of 28 ILD talaly over a 6" 36 ILD support core over the 1" 50 ILD stabilization base. This should also feel much firmer and more supportive than the Opulance. I’d be curious to know as well what foundation this was on when you tested it.
Since your experience on the Pamper and the Nature is consistent (the nature was softer) and also the Beautiful felt like you would expect it (too soft) … it really seems to point to the fact that the Opulence may not have been the Opulence. that’s the only thing that makes sense to me. If anything I would have expected this to be closer to the Beautiful. Your experience on the Opulance is such an anomaly that I probably wouldn’t include it as a meaningful part of your testing in terms of knowing what layers would be best.
Was this for the Nature? If it was it seems to me like a very good price for the set although I would not personally choose the abzzorber foundation for a latex mattress because it is a flexing foundation rather than a rigid foundation which is generally better for foam mattresses which are designed to absorb all the pressure without a flexing boxspring.
I’m on this same soapbox all the time so I completely understand. Warranties are pretty much useless in the “real world” and only protect against manufacturing defects, not against “normal” wear and tear" such as foam softening. Besides the standard impression exclusion of all warranties (some are less and some are more), as you mentioned … stains are another exclusion which makes them pretty much worthless. Your best protection is knowing what is in your mattress and warranties have nothing to do with how long it takes for a mattress to wear out (which isn’t covered). They are selling tools and only protect against manufacturing defects … not the things that make most people want to return (or replace) a mattress. Even without the “stain” exclusion … any softening or change in a mattress that leads to the need to replace it usually doesn’t include an impression that is deep enough for a warranty claim. So now I’ll get of the same soap box and back to saying that the only meaningful “warranty” is knowing what is in your mattress
Based on your testing … with the caveat that the bases you were using could make a real difference … I’d probably suggest that your best odds were with 3" of 22-24 ILD talalay over either 2 x 3" layers of firm and x-firm or a single 6" layer of firm or x-firm. It may be safer though to go with soft/medium/firm or soft/firm/x-firm to have the option to change some layers around to get as close as you can and then build in a layer exchange to get to your final configuration. I would definitely make sure you had a stretch knit cover and whether it was quilted with wool or not would depend on what you feel best about regarding a fire barrier (the wool quilting doesn’t need a separate fire barrier). The wool quilting would be slightly firmer than the stretch knit without the wool. Either way though … it should be stretchy and not a woven cover to get a similar feel to what you have been testing.
Hope this helps … in spite of the anomoly.
Phoenix