Sleep more soundly knowing your mattress is wrapped in complete, 360-degree security with the Sleepy’s Total Encasement Mattress Protector. This six-sided, zippered protector is waterproof and locks out allergens and mildew. Advanced MiteTight™ seams seal out bedbugs and dust mites. Plus, antimicrobial silver is added to prevent odor to keep your bed fresh. You’ll find the soft, lightweight performance fabric super breathable, and it won’t slide, bunch up, or change the feel of your mattress.