Hi llvss7,
I’m not familiar with the details of the mattress you are looking at but if you can post the specs on the forum (see post #4 here) I’d be happy to make some comments. From the limited information you posted … it seems that all the layers and components are good quality materials but I would want to know the density of the quilting foam (or any “unknown” layers that total more than “about an inch or so”).
I do think highly of Nick and Yankee mattress and I believe that they use 1.8 lb density polyfoam (or higher) in their quilting layers which would be good quality and wouldn’t be a “weak link” in the mattress but it’s always a good idea to make sure you know all the layers inside any mattress you are considering just to make sure. (NOTE ADDED: They are also now a member of this site)
The only way to know whether a mattress is a good match for you in terms of PPP is your own personal testing and experience because each person can be very different. What is suitable for one person may not work well for the next (see mattress firmness/comfort levels in post #2 here). I would make sure you’ve read and use the testing guidelines that are included in the tutorial post (there are three links about testing mattresses) so your testing will be a reasonable approximation of your experience when you sleep on it.
Phoenix