I have owned a lot of sleep accessories to help make my bedding more comfortable and have had a number of different toppers for my mattress. I am always open to new innovations and I got this product with a little bit of skepticism. The product came in excellent packaging and was very easy to open and super intuitive to figure out how to put this on my mattress. It installed within a few minutes and my deep pocket sheets fit right over it.  I tested it out immediately and was quite surprised at how comfortable it was. After sleeping on it for several nights the feature I am most impressed with is the fact that it stays so cool especially on a hot summer nights. This is particularly important to me because I get very warm when I sleep and staying cool will help me sleep better, deeper and longer. I highly recommend this mattress topper and will be buying several more for my other mattresses.