Strong the biggest bacteria trap in your bedroom is your pillow. But when was the last time you washed your pillow? As you sleep, every manner of body fluid seeps through your flimsy pillowcase and reaches your pillow. All of those fluids provide an extremely hospitable place for bacteria, mold, and other unwanted guests to grow. They also create unwanted stains and blemishes on your pillow and slowly dissolve the filling of your pillow over time. Help ease asthma and other respiratory symptoms by preventing allergens, dust mites, and bacteria from reaching you while you rest. The sleep defense system by their products brings hotel and healthcare-level bedding protection to your home. Featuring extra-tough seam construction, high thread-count polyester knit fabric, and a full 1ml thick polyurethane waterproof layer. Ultra-plush knit fabric is soft to the touch. Fully breathable - does not trap heat and is cool to sleep on. Extend the life of your pillows, and never have to worry about washing them ever again.