We just got one, King size. We're on Day 5 currently. It's taking a bit to get used to. Strange feeling at first but better every day. Don't be shy about lying on it in the showroom for an hour. In a special promo, we didn't pay sales tax, and they threw in the pillows. $125 each for King size. (All dealers sell it for the same price, so make sure they throw in the pillows, or something to sweeten the deal)
Anyway, the nicer beds were pretty pricey, Simmons, Serta, etc. The Tempurpedic was about $1k more, but has a 20 year warranty. We've only had our previous bed for a couple years and we're already replacing it. I sleep hot, my wife calls me the hairy furnace. (Don't go there... ) But I'm not uncomfortable at all in the tempurpedic. I thought the foam would make me a sweaty miserable mess, but not at all, it breathes really well.
And the cats seem to like it... Hope this helps.
TP