Hi Hendricks,
I amalgamated all the Huntsville posts in post #2 here. If you are willing to drive 100 miles or so there are some very good options available to you at the factory direct manufacturers that are closest to you and there is also a list of wholesale manufacturer that may have some better quality mattresses and how to find the local retail outlets that carry them. There are also some local retail outlets with the brands listed that may have better value.
Overall there are some very good choices available to you that would give you much better quality and value than either Sealy or Serta and have many options in memory foam (including gel memory foam).
Are you sure you’ve looked at all or phoned the many options in this list that are as close or closer to you than Nashville?
Phoenix