I’m curious about your repeated comments about lower-density foams being universally less desirable than higher. Referencing Sleep Like the Dead’s memory foam density data we can see that owner satisfaction is even between all densities. What is it about lower-density foam that makes you consider it a “weak link”?
I’m also confused by why you consider 1.5lb poly foam undesirable since you specifically list it as acceptable for a support core repeatedly on this forum.
While the top 3" of this mattress are a high quality and durable material … I would need to know the type and density of the foam in the middle and bottom layers of this mattress to be able to make any meaningful comments about this mattress in terms of it’s durability and the useful life of the mattress. The numbers you provided are most likely ILD/IFD numbers (although the bottom layer has a wider range than it should have) which are a “comfort spec” rather than a “quality/durability” spec. If you can find out the missing information that I would need I’d be happy to make some additional comments about this mattress.
Phoenix
What do you mean by “comfort spec” and “quality/durability spec”? Are quality and durability governed exclusively by the foam density?
I will update my information shortly! Thanks!