Hey sidesleeper020,
Thanks for your patience during this crazy holiday and hope things are going well. You’ve had quite a few questions for the TMU Forum that have been answered, but with so many open threads unfortunately this one was lost :).
Congrats on your upcoming new mattress purchase! Sounds like you’re following some of the suggested steps from the TMU Mattress Shopping Tutorial, such as researching local manufacturers and exploring what options you may have there. Connecting with the “experts” at better stores in your area allows the opportunity to discuss the types of materials, components, and layering that best fits your needs and preferences and that will match all the most important parts your PPP/“personal value equation” (read more of post #46 here) .
You mention that the Wellsville Carbon Cool Mattress is available from an independent reseller in your area at a steep “discount.” A bit of caution here: you may want to find out if this independent resells “used” mattresses, could account for the significant difference in pricing they offer.
The 9" base foam meets durability guidelines and should be fine, you can read more about these in the article Mattress Durability Guidelines…How Long Will a Mattress Last. Layer 1’s construction of 3" memory foam layer is something to consider as it will receive the most contact/ wear and tear, at a 3.5 lb density would be likely to break down more quickly. Of course, I am not personally familiar with Wellsville mattresses or their components, so this would be just my thoughts.
Let us know how your research goes and keep us posted.
Thanks,
Sensei