He bought foam insulation board from the home supply store. It comes in 4’ x 8’ sizes. I choose a finished size of 4’ x 5’. We cut the board to size and covered it with batting and duct-taped the overlap on the back. DH made a wood fame, like picture frame, for it. The frame made it easier to hang on the wall. If you should try this remember to hang it into the studs in the walls.
The room is taking shape and feels like a true studio now. Fabric is back on the shelves and my sewing machine is plugged in and running.
I wonder if my quilts will now look better because of the new look in the room.