Simmons Beautyrest 9-Inch Split King Box Foundation

The Simmons Beautyrest 9-Inch Split King Box Foundation delivers strong, dependable support designed to complement your Beautyrest mattress. Constructed from durable wood and steel materials, this foundation provides lasting stability and helps preserve the life of your mattress by maintaining its proper shape and structure. The 9-inch height offers a traditional profile that adds balance and support to your bed setup. Finished in a neutral fabric cover for a clean, polished look, the Simmons Beautyrest 9-Inch Split King Box Foundation—composed of two 9-inch Twin XL foundations—creates a sturdy and stylish base for your mattress.