Love this mattress topper. I have never slept better!  I am not a fan of foam mattresses so I was a bit skeptical, but with the down alternative cover it really makes it feel like a luxurious hotel bed.  Some of the other reviews mentioned that after letting it expand for 48 hours, the foam never got to 3 inches- and that is what happened in my case - it does state on the direction card included that "due to the unique properties of memory foam, dimensions after expansion may vary; this is normal and will not affect the performance of your new topper". Despite mine only rising to 2"- it did not make a bit of difference in the comfort and sleep level.  So despite the 2" vs 3" I am still giving it a 5 star!