Peace of Mind: Bey Bee waterproof undermats will provide excellent protection against fluids, urine, perspiration, allergens, dust mites, and bacteria. It is 100% waterproof, yet breathable, comfortable and noiseless. The mat is vinyl (PVC) free and safe to sensitive skins. Silky Smooth and Soft to the Touch: Bey Bee mattress undermat is covered by high quality cotton fiber and high absorbent bamboo fiber liner, which allow the mat to feel exceptionally smooth on the skin, even after repeated uses and washes. Breathable and noiseless Barrier: Unlike traditional waterproof mats that use vinyl (PVC) as barrier, Bey Bee undermats use a safer material called TPU. TPU is toxic free, noise free and totally breathable. TPU also prevents microorganisms and molds, as well as dust mites, ideal for ultimate allergy relief. Extremely Versatile: No matter you are at home or on-the-go and travel, put it on a bed, a chair, a sofa or on your lap, use it for your toddler, elderly parents, this waterproof mat gets the job done. In addition to be mattress sheet cover, it can also be used in the bassinet, cradle, crib and changing table, as a changing mat cover or changing mat liner. Durable: Bey Bee waterproof mat features 3 layer construction, with soft cotton fiber surface, noiseless waterproof barrier middle layer, and super absorbent bamboo fiber liner. The mat is machine washable. Machine wash at warm or cold temperature and tumble dry low only Hang dry is recommended.