How long does it take for the couch to dry after cleaning?

A maximum of 8 hours, but usually it is a lot faster. This is the standard estimated duration depending on the nature of the fiber/fabric materials and the method of drying. Also, air temperature and humidity levels will affect the drying time. Turning down the AC and turning on ceiling fans will also speed up drying.  Don’t place cushions or sit on the upholstery until it becomes dry. It’s best if cushions are placed in the vertical direction leaning against the wall, allowing for proper ventilation.