Since we're talking about expensive sleeping arrangements, anybody else have a "MyPillow"? http://www.mypillow.com
When we where much poorer than now we needed one bad and ended up buying a mattress in a box for cheap. It is actually very very comfortable and with the new box spring my wife can't get me out of bad anymore it's so comfy. http://www.walmart.com/ip/Slumber-1-8-Mattress-In-a-Box-Multiple-Sizes/14225185 apparently 2500 people agree! We did add a 1" memory foam top about a year ago and man that made it reallllly hard to get up in the morning.
My wife has one but doesn't use it much. She uses it when her neck hurts or she has a headache otherwise it isn't much help.
I have one, I used to have a memory foam pillow. Still do actually, just never use it anymore. The MyPillow grows on ya quick.
If hers is an appropriate size/fill for you then I recommend it. Best part is when it feels wrong, you just punch it up and it "resets" itself. Awesome!
If your going to spend some money on a good mattress I highly recommend a sleep number. We got one last year and I really wish we had gotten it sooner. They have a variety of styles to choose from and range in price from $699-$6000. Definitely worth the money and it has a 20 year warranty.