Stay cool all night! Soft and breathable, the Dri-Tec(R) Performance(R) Split Head King Mattress Protector is designed to wick away moisture, creating an ideal sleep environment. Engineered with sweat-dispersing fabric technology, you'll enjoy a cleaner, dryer sleep. Made with soft, breathable layers, this waterproof mattress protector reduces the buildup of common allergens, including pet dander and dust mites while guarding against spills, mildew, and more.