The Purple 9-inch King Flat Foundation offers low-profile, dependable support designed to enhance mattress performance and extend its usable life. Its 9-inch profile provides a firm, even base that eliminates the need for a box spring and works with standard bed frames. A polyurethane surface delivers resilient, sag-resistant support and is easy to care for. Made in the USA, this foundation streamlines bed setup while promoting proper mattress support for better sleep.