Hi alperez,
There is no such thing as “typical materials in a $1000 mattress”.
Assuming that the materials in a mattress you are considering are durable enough for your body type and meet the quality/durability guidelines here relative to your weight range … the choice between different types and combinations of materials and components or different types of mattresses are more of a preference and a budget choice than a “better/worse” choice (see this article).
Every category of mattresses includes materials and components that may not be included in other types or categories of mattresses even if they are in a similar budget range. Each category can also include hundreds or sometimes thousands of different mattresses with different designs, different “feels”, different characteristics, and different firmness levels. Every individual layer and component in a mattress (including the cover and any quilting material) will affect the feel and response of every other layer and component both above and below it and the mattress “as a whole” so each mattress category will generally include some mattresses that will be a good “match” for you in terms of “comfort”, firmness, and PPP and others that use the same type of materials and components and are in the same category may but have a different design or firmness level that may be completely unsuitable for you to sleep on … even if it uses the same general type of materials and components that would be just as durable.
Again … there isn’t a formula that can be used to assess the “value” of a mattress purchase that is only based on the materials and components inside it or without comparison to other mattresses because it would be relative to the other mattresses that you are including in your finalists based on suitability, durability, and all the other objective, subjective, and intangible parts of your personal value equation that are most important to you.
I normally prefer to know all the layers and components in a mattress listed layer by layer either from the top down or from the bottom up including the type and thickness of each layer or component and in the case of polyfoam the density of the material as well. It appears that there are more than 3 foam layers on each side of your mattress so your description may not have included all the layers and components in the mattress. If the thickness of all the layers and components add up to the thickness of the mattress then you can be certain that everything is included.
Having said that … 1.5 lb polyfoam is certainly a suitable density for a two sided mattress (as long as you flip and rotate it on a regular basis … see post #2 here) and as long as there isn’t more than “about an inch or so” of lower quality/density layers in the mattress and in this case there is only 1/4" of lower density polyfoam on each side of the mattress so there would be no lower quality materials or weak links that would compromise the durability or useful life of the mattress relative to most weight ranges (lower 200’s or less).
Original Mattress Factory in general sells good quality/value mattresses relative to most of the mainstream industry so they can certainly be a good quality/value choice that would be well worth considering as a purchase.
Phoenix