Copper Infused Pillow: Soft and Luxurious knit cover. Hypo-allergenic, machine washable. Helps reduce odors and improves hygiene. Maintains a cool pillow while you sleep. Naturally draws moisture keeping your head and neck dry. Antimicrobial protection helps keep your pillow clean. Some people report pain relief via copper products. Copper is beautiful, practical, completely recyclable, and worth its weight in gold. Made in Canada.