WHY DO YOU NEED A MATTRESS PROTECTOR? Most Manufacturers void warranties if a stain gets on the mattress. Reason: One of the leading causes of body impressions are our bodily fluids. The average person sweats 4 gallons per month. In 10 years between the average couple that is 960 gallons of sweat we put into our mattress. Imagine taking 960 milk jugs full of sweat and dumping it all over your mattress acting like a sponge. II. One of the largest population of bed bugs, dust mites and dander in your home is in your mattress: Reason: The average mattress doubles in weight every 10 years from dead skin, dust mites, and dust mites fecal pellets. Then we breathe that air for 8 hours a night!!! -How it works Cool-Tech is a 4 way stretch BREATHABLE waterproof cover. The science behind BedTech is a water molecule (H20) is larger than an Air Molecule(0). This allows our mattress protector to stop moisture while still allowing the air to pass through This makes our protector more breathable than other less quality protectors on the market. End result you protect your investment without feeling like you are sleeping on a plastic bag.