Zinus 6 Inch Ultima Memory Foam Mattress / Pressure Relieving / CertiPUR-US Certified / Bed-in-a-Box, Narrow Twin 4.5 out of 5 stars 31,827 $119.00 - $997.97 source https://www.amazon.com/Zinus-Ultima-Comfort-Memory-Mattress/dp/B074QTGLL2/ref=zg_bs_1063306_28/131-1092964-1093543?_encoding=UTF8&psc=1&refRID=4ZJ10AMKY8J4B0T0T64Y
