First, some important education: A foundation and box spring are not the same. A foundation is a rigid structural support for a mattress. Think of a foundation as a solid, empty box. A box spring, in contrast, actually contains springs, hence the name.
You can use a foundation with our mattresses, but it is not required. (Many modern bed frames do not require them.) A box spring, however, is not recommended. The reason is simple: a box spring will make our mattress — which already contains a pocketed innerspring unit — very bouncy.
Foundations are not required.
Some Avocado customers opt for foundations to allow them to place their new mattress on a bed frame (which has side rails, but limited interior support) or a traditional bed, where an additional layer is needed for support or desired for aesthetic reasons. For this reason, we created our Foundation. Our Foundation is made with FSC© certified wood, GOTS organic certified cotton, and is GREENGUARD Gold certified by UL Environment for low emissions.