GOLDEN PEDIC SUPER FIRM X - 5 YEAR WARRANTY The Golden Pedic Super Firm is the firmest mattress we have to offer. It s double-sided and all foam. When you have a customer asking for the firmest thing that you have, this is the one. 416 - 13 Gauge Spring Unit Softfeel Cotton Damask High Density Foam Base Core Special Quilt w FR Fiber 1.7 Density Super Firm Foam Adjustable Friendly Double-Sided All Foam 5 Year Warranty