This fits your .
10" tall memory foam mattress with cool-gel comfort layer. Made with 100% CertiPur certified ultra-dense memory foam, combined with phase-change material to actively cool the sleeping surface. Easily folds from a couch to a mattress. So comfortable you will replace your couch and your bedroom mattress with one.
CouchBed Memory Foam Mattress Sleep Sofa Twin (Black) - B07B8C89F4