Dream comfortably with the Dream Science Memory Foam Sleep System 3" mattress toppers from Martha Stewart Collection. Featuring a circular-knit cover, these toppers utilize ventilated memory foam that conforms to the body and evenly distributes body weight to help alleviate and soothe pressure points. 15-year limited warranty Certi-PUR® US certified memory foam helps to reduce pressure by redistributing body weight to cushion & soothe pressure points VentTech technology provides greater air flow than non-ventilated foam Removable circular-knit cover has skid-resistant backing Select specific item for details Created for Macy's Cover: polyester/spandex/cotton; foam: polyurathane memory foam Cover: machine washable; foam insert: spot clean Savings based on offering prices, not actual sales Web ID: 1847297