Don't buy an air mattress(select comfort and others) unlike a water bed, when an air mattress developes a leak(and it will) you cannot easily find the leak to make repairs. I have a TempurPedic and it is expensive and heavy but we got it for my wife. She has bone cancer and it is the only thing she can sleep on. It is very comfortable and the top surface does indeed mold itself to you as a result of your body heat (hence the name, TempurPedic)
You will want help moving it and installing it. We got the king size and the mattress alone weighs 80-100lbs or so.
Thanks for the information. Your wife will be in my prayers tonight-I lost my favorite aunt to bone cancer.
Any claminess to it at all? One of the other posts mentioned this about the Tempur-Pedic.
Or, is there anything you don't like about it?