Sleep Number Bed - Select Comfort Review

I have had my sleep number bed 2 yrs now. When I first got it I noticed a big difference instantly, I was sleeping way better then ever. I was used to a water bed and this was great. Now 2 yrs into it I am not sure what happen to the great bed. I have adjusted the settings and it just seems that I am back to the old way when I had my water bed. I still do like this bed but it just has lost more then half the spark it originaly had. I think the quality of the bed is perfect 100 percent. I just am unhappy that the good sleep didnt last.