The Serta power guard mattress encasement features liquidly construction to create the ultimate sleep shield. Say goodbye to restless nights as you enjoy the quiet, breathable, and waterproof benefits it provides. The zip n wash technology simplifies maintenance, allowing you to effortlessly attach and detach the top waterproof 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. Machine wash on a gentle cycle and tumble drying on low. Available in twin, twin xl, full, queen, king and California king sizes. Trust in the renowned quality of our Serta power guard encasement for superior protection and comfort.  Features: Waterproof Bed Size: Twin Measurements: 75 Length/Inches, 39 Width/Inches Mattress Depth: Up To 18 In Deep Base Material: 100% Polyester Care: Machine Wash Decor Styles: Casual Thickness: Thickness Not Provided Comfort Level: Basic Protection Level: Basic Mattress Pads & Toppers Type: Mattress Encasements Country of Origin: Imported