Hi Mikew096,
As you say … surprise surprise. Of course the “pre-christmas” sale along with the “last minute shopper” sale is still to come 
Some of the better options or possibilities I’m aware of (some of which you’ve found already) in the St Louis area are listed in post #6 here.
Keep in mind that these are not “recommendations” but possibilities that will still need some further research and information about the layers in their mattresses on a “mattress by mattress” basis but there are some good memory foam possibilities among the choices in the list.
Phoenix