Hence the modern iteration of the box spring: the mattress foundation. Generally made with wood or metal, these foundations are framelike with support slats across the top where the mattress rests ...

Casper mattresses are designed to work on a firm, solid foundation that can support the full weight of the mattress and the user. A Casper foundation is basically a wooden box with slats across ...

Available in various sizes, this mattress is compatible with conventional box springs or platform foundations. BED BATH & BEYOND $1,561.99 $461.35 This isn’t a one-size-fits-all deal, ...