Hi kc12,
Yes … there are no lower quality materials or weak links in any of these three mattresses that would compromise their durability or useful life or be a reason for concern relative to any BMI range. If you have talked with each of them on the phone and are confident that one or more of them would be a good match in terms of “comfort”, firmness, and PPP (and/or you are comfortable with the options you have available to return, exchange, or “fine tune” the mattress and any costs involved if you aren’t) and they compare well to your other finalists based on all the other parts of your personal value equation that are most important to you (including the price of course) then they would certainly be well worth considering.
Phoenix