Always replaced the mattresses that came in our coaches with sleep numbers. The basic model is all you need. The platform already there. This worked great for us. Each of us could select the setting that we wanted. The last ones we bought where considerably less expensive than the initial ones. Make sure you tell him you just want the mattress and the pump and the controls then it's going in and rv. We found that they would work with us on that and give us just the basic system. Good luck happy new year.
For those of you that purchased the "Basic Setup" (Mattress, pump, Controls), was the mattress a regular queen size and what was the approx. cost for your setup?