I've got one. Had it since 2002. It's queen size. Don't remember the model, but I'm guessing they've changed since then anyway. It was the perfect solution for the wife and I. She likes to sleep on a mushy bed, I like firm. She usually has her side set at 30-40 and mine is always 100. Haven't had any issues with it for the most part. The original foundation cracked after a couple years and they replaced it free of charge no issues yet with the replacement. No problems besides that. I've moved several times since owning it and it super easy to move.
Only downfall is accessories are pricey. Wife would like to replace the pillowtop, but they want like $400. I think not!
My buddy has a temperpedic that he loves so check those out too, but IMHO if you guys like different levels of firmness you can't beat the sleep number.
Good Luck!
Brian
