Yep, Brent, ours is the queen size, model 5000, with the pillow top. We got it while we were still living in the country, so after discussing it on this forum, reviewing their website, and getting their video, I ordered it on the phone and it was delivered by UPS. We got their foundation, too, so altogether it cost me $1,616. Now you described it correctly; two separate air chambers or bladders, separated by a thick piece of foam, but the only way I can imagine a doming effect and rolling to middle would be if it were inflated to a maximum amount and/or not having the pillow top and/or maybe the one you're talking about is one of the cheaper models (3000 or 4000?) that I haven't tried. That's something we've not experienced. When we first got it, I wondered about that foam ridge down the middle and if you really lower the air pressure so you sink down in the bed, you can tell it's there, but we don't go to either extreme on the pressure. I always thought I preferred a very firm mattress, but after experimenting a bit, I have my side set on 55 and find that to be quite comfortable. I'm not sure, but I think my wife has her side on 45, and she probably hasn't touched the control in 6 months. But even when I roll to the middle of the bed, I never even notice that foam separator; maybe just because we've gotten so accustomed to it.