Cotton FIRM MEMORY FOAM NECK PILLOW: Offers the perfect balance of luxurious comfort and optimal support to help you get the blissful night you deserve PRESSURE-RELIEVING COMFORT: Expertly engineered to provide pressure relief and customized support throughout the night while returning to it's shape in the morning ERGONOMIC SUPPORT: Firmer pillow material properly and comfortably supports the head, neck, and shoulders of side and back sleepers of all body types RETAINS ITS SHAPE: Ultra-adaptive TEMPUR material provides long-lasting durability and will never lose its shape, offering superior support and alignment for years to come MACHINE-WASHABLE COVER: As needed, the soft and protective 100% polyester knit hypoallergenic cover can easily be removed from the pillow and machine washed for easy care and cleaning We recommend a cold temperature setting for machine washing and a cool setting for machine drying. Air-drying is best. Do not over-dry the cover and do not use chlorine products or harsh stain removers of any kind.