Smartsilk is an effective barrier to allergens, including dust mites, allergens and pet dander. It is tested for harmful chemicals and is naturally processed and resistant to mold and mildew. Smartsilk helps to promote a deep, more comfortable night's sleep. The mattress protector comes with a fully adjustable one size fits all skirt that will fit all mattresses with depths from 7-16 inches (except crib size). This will ensure that the mattress pad / protector will not shift on your mattress. The biodegradable water repellant non woven lining will protect your mattress from stains while providing you with all the benefits of Smartsilk. All 5 sides of the pad are quilted with Smartsilk silk fill to ensure your protection and comfort.The Smartsilk pillow protector helps to keep your neck and head comfortable reducing the need to flip your pillow during the night while providing you with the same allergen protector. Simply place your old pillow in, close the concealed zipper and you are fully protected.The Smartsilk helps to regulate your body temperature by keeping you warm when cool and cool when warm.