a method for controlling a slotted mode of several systems using one sleep controller enhanced a hybrid sleep controller that performs sleep / wake - up interface of system protocol stacks in a hybrid terminal including at least two system pss used for different communication networks of a mobile communication system . the method includes determining whether there is a shared hardware - waiting system according to a sleep request from a system ps ; if there is no shared hardware - waiting system , turning off a clock of the sleep controller and power of shared hardware to enable operation in a real sleep mode ; and if there is a shared hardware - waiting system , sending an active command to a corresponding system and simultaneously driving a sleep timer until a time that other systems wake up , to enable operation in a virtual sleep mode .