stayed at a hotel with the sleep number, was nothing special. Actually we are mattress shopping too. Waiting for a hotel that had the most comfortable bed I've ever slept in call me back to tell me its brand and model lol...
All I can say, is stay away from Pillowtops. I had one, and within 4 years, it started to sag in the areas we layed in the most, the edges became to filmsy (sp?)... it was awful. definitely not durable, and although it was comfortable at first, a mattress shouldn't go bad that quickly.