Zinus Shawn 14 Inch SmartBase Mattress Foundation in Narrow Twin / Cot size / 30” x 75” / Platform Bed Frame / Box Spring Replacement 4.6 out of 5 stars 43,219 $9.59 - $599.99 source https://www.amazon.com/Zinus-SmartBase-Mattress-Foundation-Replacement/dp/B074QXGBG6/ref=zg_bs_1063306_28/136-8662784-6352869?_encoding=UTF8&psc=1&refRID=8Q88YBV798J1Q66QB3TY
