Denver Mattress sends you a mattress compressed in a tube box. Has pillow top. Takes 10 minutes to install, let it sit for 6 hours and it springs into shape. Costs about $500. We LOVE ours for the past year we have had it. No aches, no lumps, nothing but good.
Plenty of comments out there on the web, almost all very positive.
Now, if you are serious about a "real" mattress, we will hook you up with our nephew in Germany who works for a horse hair, hand woven, custom mattress company, that they make for movie stars and old money. The least expensive is $10,000. Yes, there are people out there who buy stuff like this. And yes, he makes an excellent living traveling the eastern European bloc and NYC to sell these items of comfort! Their average sale price is well over $15,000.