The Sealy Posturepedic California King Foundation is a high-profile 9-inch box spring designed to provide stable, even support for Sealy Posturepedic mattresses. This listing reflects the price for one piece; a complete California King foundation requires two pieces placed side by side.

Built with a sturdy wood frame and wire grid system, the foundation prevents your mattress from sagging and preserves its long-term performance. The 9-inch high-profile height provides ample clearance for a bedspread or bed skirt. Each piece measures approximately 83 inches long by 36 inches wide, and together the two pieces create a full California King size.

The cover is made from 100% polyester fabric with a 100% polypropylene dust cover, a 100% polyester Resilium pad for added cushioning, and plastic corner guards to protect edges and maintain structural integrity. Compatible with both foam and innerspring mattresses, this foundation is backed by Sealy's 10-year limited warranty.