It is better to allow a reasonable curing time for the carpet. However, nobody can tell what is the exact time needed to dry the carpet. There are several other factors which affects the matter. Certainly, it depends on the weather, the thickness of carpet, and the level of soiled the carpet is. A few carpets dry under two hours while others may take three to six hours to dry completely. Moreover, it also depends on air movers, through keeping the widows open and turning ceiling fans on.