Zinus 9" Metal Smart Box Spring®, Mattress Foundation, Twin

We like to think of a box spring as the backbone for your mattress. The best kind should be flat . level and built to keep your mattress in tiptop shape; and that's just what the Smart Box Spring® does! With its easily assembled . dependable steel structure . you can rest assured that your mattress will be sitting pretty. An included poly jacquard cover blends with the rest of your bedroom . and with a variety of different thicknesses to choose from . you can pick the one you need to customize the height of the bed. Now that's peace of mind you can sleep on.