Original Bed Bug Blocker Zippered Mattress Protector (King),White All-In-One Zip-Up Mattress Protector, those worries are a thing of the past. The exclusive design not only helps any unwanted visitors, but invisible problems as well. The closure is so secure due to its triple seal. Our Mattress Protector features three microporous layers that are completely stain and water resistant; so if the kids have an accident or you happen to spill your drink, your mattress is left untouched and protected. The non-bulky design means you won?t even know it?s there ? or hear that it?s there ? in the case of so many other mattress covers. You can confidently add your sheets, pillows, comforter, and blankets without worry about any uninvited guests taking over your bed with All-In-One Zip-Up Mattress Protector. Soft, Breathable Fabric Ultimate Protection: This total encasement system features a triple seal closure, heavy duty seams, and an interior barrier flap to help keep you, your family, and your mattress covered Technologically Advanced Design: This mattress cover features a three-layer system; the triple seal closure features hook-and-loop and zipper closures along with a protective inner flap Completely Water Resistant: The outer layer is water Resistant and stain resistant, which makes it a great choice for children?s beds instead of using a plastic or vinyl cover Ideal Fabric: The exterior fabric is soft and made of 50% polypropylene/50% polyethylene with a 100% polyethylene lining, with no plastic feel. It's quiet and doesn't make unwanted noise while you sleep in your bed. Great Fit: Our mattress protector fits beds up to 15? deep. It measures 80 x 76 inches and fits king size mattresses