Purple 9" Twin Flat Foundation provides a low-profile, comfort-forward base that gives your Twin mattress consistent, even support. The 9-inch profile relies on a sturdy internal platform to perform the function of a box spring, keeping the mattress properly supported and helping reduce sag over time. A polyurethane cover shields the core and wipes clean for easy care, and the compact Twin size pairs with standard bed frames for straightforward setup; made in the USA for reliable performance and simple bed assembly.