I slept on Sealy's version of the Tempur-pedic for several years.
I missed it incredibly when I moved out and am looking forward to it again
as I'm moving back in. It eliminates "hot spots" on my hips and shoulders
that I tend to have trouble with. And if there's another person getting in
or out of bed or rolling around, the only thing that clues you in is the sheets
moving. It's about 2.5 years old and it has settled a bit, but I think it's more
because he is bigger than I am and "broke in" his side. And then changed
sides with me.
They're miserable for about 2 weeks if you're not heavy
enough or not in it enough to do the "breaking in". I had 4 inches of standard
foam on my old mattress and have slept on those with the toppers and
nothing really compares to the whole mattress. It's the bomb.
But, if you can't afford the whole set, get the thickest topper you can find
as they WILL settle a bit where you lay most. Then it'll feel like an air mattress
where you hit the floor.