Sleep Number® Bed Modular Base: Maximize Your Comfort and Support. Our extra-strong, durable Modular Base takes the place of a traditional box spring and won't sag or break down over time - it provides a firm, level surface that will last 20 years or more. Its unique component design makes it easy to move through narrow spaces and assemble in smaller rooms. Included in bed set pricing. Made in USA.Support your Sleep Number mattress and Modular Base with optional Modular Base Legs or a Rolling Bed Frame. Sleep Number Brackets let you connect your headboard and footboard to your Modular Base.
Maximize the comfort and support of your Sleep Number® bed.