Theresa: maybe this will help
My husband rents one of those carpet shampooers from the store and uses the nozzle and sprays down the couch and deep cleans it that way once a year. It is like new!
Mine is solvent based, the tag says S on it. For this, I add a little bit of warm water to a bottle and fill the rest with rubbing alcohol. Lightly spray the area, then wipe clean. Definitely check out the tag to see what type of cleaner is best