Receive a comfortable night's rest while improving your skin's appearance with the Cupron technology in this NightSpa Pillowcase and Pillow Bundle from SensorPEDIC. The fabric for this pillowcase is infused with copper ions and is clinically proven to help reduce signs of aging. Copper is a natural element that can help promote the growth of collagen in the skin around your eyes, reduce the appearance of fine lines and wrinkles, and improve your skin tone's overall appearance.