The Serta Power Guard mattress encasement features LiquiDry construction to create the ultimate sleep shield. Say goodbye to restless nights as you enjoy the quiet, breathable, and water-resistant benefits it provides. The Zip N Wash technology simplifies maintenance, allowing you to effortlessly attach and detach the top water-resistant layer using the convenient nylon zipper. Cleaning is a breeze, as you can simply toss it in the washing machine while the bottom encasement stays securely in place. No more struggling with poor fitting covers - our zippered enclosure flawlessly accommodates mattresses up to 18" deep, ensuring a snug fit without any hassle. Trust in the renowned quality of our Serta Power Guard encasement for superior protection and comfort.