Although the quality of this mattress is very good, it doesn't seem to be made to go with a full sized futon.when the futon is in the sofa position, this mattress doesn't reach to top of the back or the edge of the seat. it's also so thick that it doesn't look like it belongs on the futon.we tried to get it replaced, but wayfair wasn't helpful and charged us $41 shipping plus we would have to package it. the packaging itself is difficult because it's a full sized mattress. wayfair customer service was rude and didn't go to any length to make us satesfied.we will replace this locally.