A mattress foundation typically has the rigid frame-like structure of a box spring, made from either metal or wood, but with slats to rest the mattress on and no actual springs inside.

Back when innerspring mattresses ruled the market, using box springs was a no-brainer. The flexible, spring-filled mattress bases allowed for flexible support while lifting the mattress to a then ...

If you haven’t seen a box spring in a while, it’s not your imagination—a mattress expert breaks down when you might need this dinosaur of the sleep world.

Like mattresses, box springs should be cleaned periodically to get rid of all the dust and under-the-bed debris that have accumulated over the years. Here’s how to do that. What is a box spring?