Using Upholstery Batting
Upholstery foam makes great cushions, but used by itself it tends to give the finished cushion a very sharp, angular look and some upholstery fabric also tends to creep and wrinkle when used directly over foam. To prevent these problems, professional upholsters use upholstery batting on top of upholstery foam to give the piece a softer look and to prevent the fabric from shifting.
Upholstery batting is available in both cotton and polyester. Either material provides good comfort and looks for upholstered furniture. Because batting also tends to shift, the entire cushion foam with the batting in place should be wrapped with Dacron wrap or sewn into a muslin cover.