Home Slickdeals Zinus Shawn 14 Inch SmartBase Mattress Foundation / Platform Bed Frame /... Slickdeals Zinus Shawn 14 Inch SmartBase Mattress Foundation / Platform Bed Frame / Box Spring Replacement / Quiet Noise-Free / Maximum Under-bed Storage, Queen [Standard] $49.99 By ARCOM - 25 July 2019 110 0 SHARE Facebook Twitter Go to the deal page: Zinus Shawn 14 Inch SmartBase Mattress Foundation / Platform Bed Frame / Box Spring Replacement / Quiet Noise-Free / Maximum Under-bed Storage, Queen [Standard] $49.99