Looked at the sleep number and the tempurpedic one. Got the temperpedic one and love it. It took a few weeks to get used. My back loves me for it. They have one that moves but that was out of my budget but so was the one I got, lol.
The wife can get in and out of bed and I do not know it. The odd thing about the bed is you find that you do not move much at all, almost like your stuck. My chiro said to sleep on my back as it was better for me. This bed keeps me like that for along time. Oh, your chiro can write a prescription for those but I think it only drops the tax which is quite a bit actually.
I know, you asked about the sleep number, sorry I got nothing on that.