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We reinvented the box spring. Our bed foundation provides excellent support under any Casper mattress and can be assembled in minutes.
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4.8
77 ratings
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Super easy to build, way easier than moving a king box spring around
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William · Yesterday
Well buit. Offers great support to stop mattress from sagging.
R
Robert · October 10, 2026
Fit perfectly, easy to assemble, what more could you want.
