Beautyrest® Black Foundation offers support, durability and reduced motion. When used with a proper supportive bed frame, the Beautyrest® Foundation helps prevent sagging and bowing for the life of the mattress.
Dimensions: Regular foundation is 9 inches high Low-Profile foundation is 5 inches high
Twin: 39 inches wide x 74 inches long
Twin XL: 39 inches wide x 80 inches long
Full: 54 inches wide x 74 inches long
Queen: 60 inches wide x 80 inches long
King: 76 inches wide x 80 inches long - This is a split set
California King: 72 inches wide x 84 inches long - This is a split set