85% Polyester, 15% Spandex SEALYCOMFORT MEMORY FOAM: This king size pillow is designed with cushioning gel memory foam conforms to your head and neck, providing personalized pressure relief and a comfortable sleep experience SEALYCHILL MATERIAL: A cooling gel layer integrated into the cooling memory foam pillow provides a refreshing sensation, helping to regulate your temperature and keep you cool and relaxed throughout the night BREATHABLE COVER MATERIAL: Made with a blend of 85% polyester and 15% spandex, the cover enhances comfort and durability while maintaining flexibility KING SIZE: The cooling gel pillow measures 34" L x 18" W x 6" H, ideal for most pillowcases, and designed to provide support for back, side, and stomach sleepers SURFACE-GUARD TECHNOLOGY: Antimicrobial Surface-Guard Technology kills bacteria and allergens, and the removable, machine-washable cover ensures easy cleaning