We have one of those and really like it.I have a deep feather and down mattress topper that I bought from QVC a few years ago. Expensive but one of the best things I ever bought! It needs a bit of a shake every other day and I let it air for an hour or two when I change the bedding and it fluffs up beautifully. The great thing is that it's never too warm or too cold and it feels like lying on a cloud.