An ideal choice for side and back sleepers, this extra firm pillow from the Martha Stewart Collection helps your rest peacefully with its super supportive Won't Go Flat design featuring a dual-layered core of soft Durafill and foam. Dimensions: 20” X 36” Cover: cotton; polyester fill Foam: 27 oz. polyurethane Thread count: 230TC 100% Cotton, Fill: Foam Bun wrapped with Hypo-Allergenic Polyester Fiberfill Won't Go Flat Core- Durafill synthetic fiber surrounds a durable foam core for extra support Extra firm support- an ideal choice for back and side sleepers Limited 3-year Warranty Created for Macy's Machine washable Made in USA of imported materials