I hated my sleep number bed. We were fine for about a year although the divider thing in the middle was collapsing within 90 days. I don't know if it is becasue we bought a queen and really should had purchased a king, the salesman did not give us any feedback in this. The CS department said that we made the wrong choice....oh well. They sent another divider to help bolster the thing. Anyway we got rid of it in less than 5 years.
I know that while there are a lot of people who love theirs, we just never got comfortable on it. I tend to sleep on the edge of the bed and the foam support seemed to sag. Now I am average weight, and DH is a big guy, over 6'6" with 55 inch shoulders. It just was not made for us.