Store
Mattress Firm
Mattress Firm has the best sales on mattresses, beds, adjustable bases, bedding and more from top brands like Tempur-Pedic, Purple, Serta and Beautyrest.
Detail
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 thats just what the Smart BoxSpring does! With its easily assembled dependable steel structure you can rest assured that your mattress will be sitting pretty. An included poly jacquard cover zips on to seamlessly blend 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. | Zinus Twin Extra Long 5 Inch Metal Smart BoxSpring