MORGEDAL Foam mattress, medium firm/dark gray, Twin
https://www.ikea.com/us/en/p/morgedal-foam-mattress-medium-firm-dark-gray-20272212/

Price: $50 for 1 mattress, $80 for both

Both mattress bought in Summer 2022 and gently used for less than a year, fantastic condition, no stains, and bugs free guarantee. Available for pickup today in Palo Alto