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 sold, 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.
We do not sell foundations. However, 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. In these situations, we recommend a knock-down foundation from U.S. Box Spring.
U.S. Box Spring makes natural wood foundations (strangely, they do not make box springs) from kiln-dried North West Spruce that can support up to 1,500 pounds. With 15 slats spaced less than 3" apart (we recommend less than 5"), they are ideal for any Avocado Green Mattress. They also come with a simple organic cover and fit on all standard bed sizes. Note: They do require at-home assembly, but this can be done without tools and takes about 30 minutes.
U.S. Box Spring offers two heights — (low profile) 5.5 inches and (standard) 8 inches. (Some customers that purchase our pillow top mattress, which is 13 inches tall, opt for the shorter 5.5 inch foundation.)
NOTE: Avocado does not have a relationship with this product or company, and does not receive any affiliate commissions in the event that you purchase this product.