Our normal cleaning process does not saturate the inside cushion of a couch. However, this inside cushioning does tell us something about the cover fabric. It is usually more expensive than a couch with a foam cushion. The cover fabric will usually be a Cotton, Rayon, or Silk. I would be a little more concerned about the possibility of a brown out, and would add 2-3 ounces of Orange Deodorizer with our regular 101. If anything looks out of the ordinary, please call John or Cody before you start to clean the item.