From the Noble Excellence, this pillow features: Materials: 90% Nylon / 10% Spandex  Noble Excellence® Double Cool™ for all sleep positions pillows feature fabric technology that keeps you cooler all night long The double cool fabric is Nylon, which is inherently cool to the touch, blended with spandex for added personalized comfort The pillow is filled with  Perfromaloft(tm) Polyester fiberfill for great support, comfort and loft Phase change material is also applied to the underside of the fabric resulting in a pillow that is double cool and comfortable all night long Each size sold separately Jumbo approx. 20" H x 28" L King approx. 20" H x 36" L Care instructions: Recommend front loading large capacity washer and dryer Wash and rinse in cold water Gentle cycle, mild detergent Use non chlorine bleach only if needed Tumble dry on low heat, preferably with dryer balls, turning frequently to avoid scorching Do not iron, steam or dry clean Imported.