Box SpringsHas your box spring seen better days? Make sure your mattress has the support it needs with a new box spring from Raymour and Flanigan. A sturdy, stable box spring provides a proper mattress foundation, so you can fully enjoy all of the features your mattress has to offer. Choose from regular-height and low-profile box springs to find the perfect sleep setup. Split box springs are also available in king and queen sizes to make navigating those narrow or winding stairways a cinch.