Hi Michael,
I’ve removed your links to your store and replaced them with just your store name and the brand name of the mattress you linked to.
But just to answer you post more generically …
I personally don’t recommend major brands because of their low quality or “unknown” foams as you can see from the guidelines here.
You can also see from post #2 here … that I am also not comfortable buying from liquidation outlets because the risk that you are buying a used mattress is just too high.
Phoenix