Of best value is the Laken mattress, with foam-encased edge support and a quilting made of soft-stretch knit cover. Quilting: Soft Stretch Knit Cover Safety: 16 CFR Part 1633 Flammability Standard Approved Edge Support: Foam Encased Foam: 1" Advantagel, 1.5" High Performace Foam Innerspring: 8" Contour Pro Elite Pocketed Coil...