The Tempur-Protect Mattress protector is definitely a MUST-have when you're spending this much on your mattress. Memory foam mattresses will mold and smell if they are to get wet so getting one of these for both my and my partners' mattresses was a no-brainer. The product itself is good quality and though I haven't tested it's purpose the only negative I could say is that it does move around over-time so getting some sheet clips is something we've done to help.