A box spring (foundation) along with a mattress are engineered to work together as a set. The foundation takes a lot of the nightly wear and tear and contributes to the bed's overall comfort and support. It is recommended that you purchase a matching box spring for each conventional mattress you get. Most of the manufacturers make universal foundations that work with all the mattresses they handle. Some collections come with specially made box springs. Keep in mind that box springs may vary in sizes and shapes, so the wrong foundation will impede comfort and reduce the useful life of your new mattress.
