Hi RNmomma,
The better options or possibilities I’m aware of in your general area (subject to making sure that any mattress you are considering meets the quality/value guidelines here) are listed in post #2 here. You have some good options or possibilities other than “S” mattresses in reasonable driving distance.
Which step in the tutorial are you “stuck” on?
If you have any questions that can help clear up any confusion you may have I’d certainly happy to answer them.
As I mentioned earlier I would avoid all the major brands or any mattress that uses lower quality or “unknown” materials (in the comfort layers especially). If you are considering an online purchase the tutorial includes several links to lists of the better online options that I’m aware of (in the optional online step).
Phoenix