I LOVE this and I could not be happier with my purchase.  I bought this and put it over a mattress topper and I am now sleeping so much better than I was on my firm mattress.  I read another great review by someone else saying they put their toppers like this in the dryer with tennis balls to fluff them up.  I thought that seemed a bit harsh - but a great idea - since I have a little dog I just put new "mini" tennis balls in the dryer with this to fluff it up and it worked great! I didn't leave it for a long time and I am going to try and not wash it for as long as possible.  I think I will buy another one, you will not be sorry if you need some added comfort to your bed.