A king mattress and box spring set provide the stability and support needed for restful sleep. The box spring king foundation helps distribute weight evenly, extending the lifespan of your mattress while reducing motion transfer—perfect for couples.

For added convenience, we offer split king box spring sets, making it easier to navigate tight spaces and staircases, while still providing the full support of a traditional box spring.

Complete your new king mattress set with an adjustable bed frame and mattress protector for added durability.

At Surplus Furniture, our king-size mattress sets offer true luxury at factory-direct pricing. Whether you need a traditional innerspring mattress or the pressure-relieving comfort of memory foam, our king-size mattress and box spring sets ensure you sleep soundly every night and for years to come.

Looking to upgrade your entire bedroom? Check out our king-size beds to complete your space.