My sister bought one of those expensive adjustable Tempurpedics and says she's not impressed. If I'm shelling out $5000+ for a mattress, it better do the laundry for me too!
DH and I bought a big expensive king pillow top when we were dating. WORST IDEA EVER. Within about a year, the pillow top was sinking in, no matter how many times we turned it.
This past Monday, we went to Macy's and bought a Simmons Beautyrest in Firm. It has a 10 year warranty, didn't break the bank and hopefully we can stop waking up sore!! I figure if it's too firm, we can always buy a topper for it. GL!