Method for treating laundry in a laundry machine which comprises: - a rotatable drum adapted to receive laundry to be treated; - a washing tub enclosing said drum; - a water supply apparatus configured to supply water into said washing tub; - a control unit programmed to carry out a laundry treatment cycle; - a laundry treatment agent dispensing device adapted to deliver into the washing tub at least one laundry treatment agent between a laundry detergent and a laundry softener, said laundry treatment agent dispensing device comprising a first reservoir (220) adapted to be at least partially filled with said laundry detergent and a second reservoir (220) adapted to be at least partially filled with said laundry softener, and - a control system, in signal communication with the control unit, providing a softener signal adapted to take a first value (SS) indicating that no laundry softener quantity will be delivered into the washing tub during said laundry treatment cycle, and a second value (SS) indicating that a laundry softener quantity will be delivered into the washing tub during said laundry treatment cycle; the method comprising: - performing a washing phase in which the laundry treatment agent dispensing device delivers said detergent into the washing tub; - performing a number of rinsing phases wherein detergent used in the washing phase is removed from laundry by using water provided by said water supply apparatus; characterized in that - the control unit sets the number of rinsing phases to be performed according to whether the value taken by the softener signal is the first value (SS) or the second value (SS). - a rotatable drum adapted to receive laundry to be treated; - a washing tub enclosing said drum; - a water supply apparatus configured to supply water into said washing tub; - a control unit programmed to carry out a laundry treatment cycle; - a laundry treatment agent dispensing device adapted to deliver into the washing tub at least one laundry treatment agent between a laundry detergent and a laundry softener, said laundry treatment agent dispensing device comprising a first reservoir (220) adapted to be at least partially filled with said laundry detergent and a second reservoir (220) adapted to be at least partially filled with said laundry softener, and - a control system, in signal communication with the control unit, providing a softener signal adapted to take a first value (SS) indicating that no laundry softener quantity will be delivered into the washing tub during said laundry treatment cycle, and a second value (SS) indicating that a laundry softener quantity will be delivered into the washing tub during said laundry treatment cycle; the method comprising: - performing a washing phase in which the laundry treatment agent dispensing device delivers said detergent into the washing tub; - performing a number of rinsing phases wherein detergent used in the washing phase is removed from laundry by using water provided by said water supply apparatus; characterized in that - performing a washing phase in which the laundry treatment agent dispensing device delivers said detergent into the washing tub; - performing a number of rinsing phases wherein detergent used in the washing phase is removed from laundry by using water provided by said water supply apparatus; characterized in that - the control unit sets the number of rinsing phases to be performed according to whether the value taken by the softener signal is the first value (SS) or the second value (SS).