The Omne Sleep Deluxe Mattress Protector is the perfect choice for keeping your mattress safe from spills, stains, and unsightly marks. Made from ultra-thin and smooth polyester material, the Omne Sleep Deluxe Mattress Protector is breathable and maintains a comfortable sleeping temperature. Additionally, it does not change the feel or sound of your mattress and still provides top of the line protection against liquids, dust mites and allergens. The protector is 100% waterproof, and repels liquids and fluids to protect and maintain your mattress and mattress warranty. The protector is phthalate free and safe for children and pets, with a fitted style sheet that can accommodate mattress depths up to 18 inches.