Hi Tbrady,
I can’t speak to which mattress would be the best match for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) because the only way to know that is your own careful and objective testing (see mattress firmness/comfort levels in post #2 here). Nobody else can feel what you feel on a mattress.
I can however speak to the quality of the materials. Simmons doesn’t usually disclose the quality/density of the layers in their mattresses but they tend to use low quality materials in the comfort layers and I would avoid them (and the other major brands) completely (see here). I wouldn’t even test a mattress where you know ahead of time that you won’t likely be able to find out the quality of the materials inside the mattress (see this article). You can see an example of the foam quality/density of a Simmons pocket coil mattress here and as you can see (based on the guidelines here) the comfort layers are very low quality/density and clearly a weak link of the mattressand I wouldn’t consider it no matter how good a match it was in terms of PPP.
Latex on the other hand is the most durable type of foam material so the Pamper doesn’t have any weak links in the design. It’s the firmest mattress in the range and would typically work better for those who don’t sleep on their side (although again each person is unique so there are no general rules that would apply).
Hopefully you’ve read the tutorial post here which has all the basic information, steps, and guidelines that you will need to make the best possible choice … and know how and why to avoid the worst ones.
Phoenix