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The Mainstays Full 9 in High Profile Mattress Foundation is a foldable steel box-spring substitute that gives a Full mattress a 9-inch-high base. It assembles without tools and folds for storage or moving. It works with innerspring, memory foam and combination mattresses. Against traditional wood box springs it is lighter and easier to move, but it is a foundation only: the mattress and bed frame are not included.
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Lowest price we've seen: $65.99 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Rated 4.5 out of 5 from 5,904 ratings, buyers mostly report easy setup and a solid, quiet base under foam and innerspring mattresses. Complaints center on the firm feel and the separate purchase of frame and mattress.
The Mainstays Full Mattress Foundation is a 9 in high-profile base for a Full-size mattress. It has the look and function of a traditional box spring. A steel frame provides the support underneath.
No tools are required for assembly. The foundation folds, which makes it easier to store or transport. The surface is covered in a white jacquard cover made of 100% polyester.
It works with innerspring, memory foam and combination mattresses. The mattress and bed frame are not included.
