The manufacturer has reinvented the bed frame with this “compact” and easy-to-set-up base, uniquely designed at high for optimum support, durability, and plenty of under-bed storage space. This bed frame provides a sturdy foundation for box springs and mattress sets. Visionary design - The center bar support and 9-leg construction are unique to the compact bed frame and ensure superior stability. The 9 support legs are intelligently recessed for safety and help you avoid hitting your toes when making the bed. Bed frames are meant to be used with a box spring and mattress set. Another comfort innovation. Pioneering comfort.