Hi aero1,
I understand. For some people the air mattress is a fit, regardless of my opinion about the product, and there’s nothing wrong with that.
With a BMI of 29, ideally I’d recommend you search for something using a bit more durable materials, including polyfoam that is 2 lb density or above and memory foam that is 5 lb density or above.
I don’t know if you saw it yet, but there are some other airbed options that are listed in post #3 here that may be much better quality/value choices than Sleep Number/Select Comfort that you may wish to consider as well.
Phoenix