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 42,305 $8.86 - $600.00 source https://www.amazon.com/Zinus-SmartBase-Mattress-Foundation-Replacement/dp/B074QXGBG6/ref=zg_bs_1063306_19/144-3943197-4524522?_encoding=UTF8&psc=1&refRID=VQZ04S5P9R099HAF1SH5
