I had a very difficult time deciding how to rate this item. The topper is truly like sleeping on a cloud. The problem comes in to play at that point. The cloud feels like it's right next to the sun! The pad gets incredibly hot. I now need to find a "cooling" mattress cover that will accommodate the topper. You decide whether it's cost-effective to purchase this topper and to purchase a separate 20" cover that will keep it cool enough. I thought all I needed to spend was $210.00. Now I find I need to spend another $150 (approximately) on a "cooling" cover. Not cost-effective anymore. Being menopausal, I looked for something that would disapate the heat that bothered me so much. This advertised that it did such. It does not.