Unsure What These Are Called

[Virgs Sew n Sew]

My outdoor furniture customer knew that there was fabric left from that project.  When I delivered, he loaded my car with his next project for me.  I checked my fabric and I barely have enough to do this, I think.

Problem is that I'm not sure what these are called so I'm having trouble googling these.

He gave me two boxes of furniture foam (at least that's what he says it is).  Each box has two foam pieces that are the same shape.  One box is chair shaped and one is couch shaped (a 2 cushion couch).   What he wants is to have them upholstered using the remnants of his cheap Hobby Lobby fabric but what he wants is to have the fabric sewn so that they can be positioned as a chair or unfolded lengthwise.  Does this make sense to anyone here?  If so, what is the technical name for this so that I can research how to tackle this project?

Thanks for any assistance you can provide me!

Virginia (Virg's Sew & Sew)

[Virgs Sew n Sew]

OK, I think maybe he's talking about convertible couches, etc.

Anyone with any experience with them?

Thanks!