Hi Jra3,
Unfortunately they don’t include enough information about the mattress to make any meaningful comments about it but as you can see in the guidelines here and some of the other information that is included in the mattress shopping tutorial … I would avoid the major brands completely or any mattress where you aren’t able to find out the quality/density of the materials inside it (see this article).
There is more about the different ways that one mattress can “match” another one in post #9 here but I certainly wouldn’t want to “match” the quality or durability of the materials in a Beautyrest (they are generally too low to be a suitable “target” to try and match) and other than the quality and durability of the materials the only reliable way to know whether a mattress is a reasonable approximation of another mattress in terms of comfort and PPP (Posture and alignment, Pressure relief, and Personal preferences) would be based on your own careful testing (hopefully using the testing guidelines in the tutorial) or your personal experience.
I would also suggest avoiding using using a specific mattress as your “target” or reference point because it may not be the best possible match for you in the first place (and you could end up excluding another mattress that may be different but could be a better choice in terms of quality or PPP) and because human memory for softness, firmness, and “feel” is very unreliable and a mattress that may feel similar to what you “remember” another mattress feels like may end up being very different. Instead I would rate every mattress you consider against a common set of criteria (rather than against another mattress) using the testing guidelines in the tutorial post and based on which one is the best “match” for you in terms of PPP and all the other parts of your personal value equation that are most important to you.
Phoenix