Alta 8” Memory Foam Alta 8” Memory FoamClick to enlarge Alta 8” Memory Foam ALT-33XL-SET Twin XL Mattress Set ALT-33XL Twin XL Mattress 33X-CF 6/6 Common Foundation ALT-50-SET Queen Mattress Set ALT-50 Queen Mattress 50-CF 5/0 Common Foundation ALT-66-SET King Mattress Set ALT-66 King Mattress 33X-CF 6/6 Common Foundation Features: ComfortMemory Foam Profile Height8” Inner Cover100% Cotton Outer Cover98% Polyester, 2% Spandex Foam2” 2.5lb Gel Infused Memory Foam6” 2lb High Resolution Base Foam Sizes AvailableTwin XLQueenKing Warranty10 Year Non-Prorated Free