This is perfect!
I purchased this to go over the Simmons Curv 2" foam memory topper, which is excellent quality!
I did leave it out "to fluff", but I puffed up each square by hand, too.
This combination is perfect!
I go to the gym, and get sore.  Also, my mattress needed just a bit of cushion.
I don't weight that much, about 150 and 5' 6", but I have muscle mass, too, so this combination hugs my body, and I don't get stuck.
Look at the price for each - shocking!
Oh, this is combination is so nice!  I used it the first time last night, and I didn't want to get out of bed!