Sleep Smart Collection Mattress Protector. Better than basic! Technologically advanced and allergen-resistant Superior waterproof protection with a soft cotton cover Dust-mite resistant Allergen reducing Plus, these superior qualities won"t wash away Created with a permanent infusion of active particles bonded to the molecular structure of the fabric Premium hypoallergenic, 100% polyester fill provides slightly cushioned comfort Stretchable side panel allows for simple bed making while keeping the mattress protector in place Conveniently machine washable Superior construction for superior comfort. Above and beyond the waterproof protection with a soft (and quiet) cotton cover, the Brookstone Sleep Smart Mattress Protector is made with an ultra-fine weaving process that serves as an effective barrier against allergens, bed bugs and dust mites. Plus, the Sleep Smart Mattress Protector is made with durable, stretchable side panels that easily slide onto your bed, and hug your mattress to keep it in place. Sleep better tonight with your Sleep Smart Mattress Pad from Brookstone. Order yours today.