Makes a real noticeable difference to my mattress now.  Well made, no off-gassing smell and not heat inducing. I’m sleeping much more comfortably. Also delivered before anticipated date. For reasons too long to explain here, I inadverdently thought there was a  size mistake with the product and Wayfair customer service were quick to respond and absolutely WONDERFUL, understanding, and went above and beyond. Awesome customer service rounds out this satisfying product purchase.