Questions about Dreamfoam, Ikea Mattresses and Frames, Addable

[phoenix]

Hi The Riddler,

A question though: in terms of durability, not necessarily quality of “memory foam characteristics”, would a 2.5 density memory foam have the same longevity (or more?) than a polyfoam with a 2.5 density? I hope that question makes sense?

A true HR polyfoam at 2.5 lb density would be much more durable than a memory foam at the same density.

Also, I re-read the durability guidelines for higher BMI people, and you mention for polyfoam that you should go for at least a 2lbs/pcf. Assuming you get polyfoam at that density or higher, does it matter how many inches there are of this density material in terms of durability as long as it is over that number and the higher density is on the top?

Ideally I would recommend 2 lb density in the comfort layers for a polyform for people of a higher BMI.

This post about progressive mattress construction talks a bit about common layer thicknesses.

The thickness of a mattress overall is just a side effect of the design and by itself isn’t particularly meaningful because whether a thicker or thinner mattress would be better or worse for any particular person will depend on the specifics of the materials (type, firmness, etc.) and on all the other layers in the mattress. Thickness is only one of many specs that are used to make different mattresses that perform and feel differently and that makes a mattress suitable for one person and not another. There is more about the effect of thickness in post #14 here. Regardless of how thick or thin a mattress may be … the most important part of the “value” of a mattress is how suitable it is “as a whole” for your particular body type, sleeping positions, and preferences in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) regardless of how thick it may be.

Phoenix