A wearable device configured to facilitate prediction of a sleep stage and intervention preparation in advance of the sleep stage's occurrence, the wearable device comprising: one or more sensors configured to be placed on a subject and to generate output signals conveying information related to brain activity of the subject; one or more stimulators configured to provide the intervention to the subject; and one or more physical processors configured by computer-readable instructions to: determine a sample representing the output signals with respect a first time period of a sleep session; provide, during the sleep session, the sample to a prediction model at a first time of the sleep session to predict a sleep stage of the subject occurring around a second, later time of the sleep session; determine, prior to the second, later time, intervention information based on the prediction of the sleep stage, the intervention information indicating one or more stimulator parameters related to peripheral stimulation; determine a sleep disturbance risk of providing an intervention around the second, later time to the subject; determine if the sleep disturbance risk does not satisfy a predetermined risk criteria; cause, based on the intervention information and the determination that the sleep disturbance risk does not satisfy the predetermined risk criteria, the one or more stimulators to provide the intervention to the subject around the second, later time of the sleep session; and decrease the intervention based on the determination that the sleep disturbance risk satisfies the predetermined risk criteria. one or more sensors configured to be placed on a subject and to generate output signals conveying information related to brain activity of the subject; one or more stimulators configured to provide the intervention to the subject; and one or more physical processors configured by computer-readable instructions to: determine a sample representing the output signals with respect a first time period of a sleep session; provide, during the sleep session, the sample to a prediction model at a first time of the sleep session to predict a sleep stage of the subject occurring around a second, later time of the sleep session; determine, prior to the second, later time, intervention information based on the prediction of the sleep stage, the intervention information indicating one or more stimulator parameters related to peripheral stimulation; determine a sleep disturbance risk of providing an intervention around the second, later time to the subject; determine if the sleep disturbance risk does not satisfy a predetermined risk criteria; cause, based on the intervention information and the determination that the sleep disturbance risk does not satisfy the predetermined risk criteria, the one or more stimulators to provide the intervention to the subject around the second, later time of the sleep session; and decrease the intervention based on the determination that the sleep disturbance risk satisfies the predetermined risk criteria. determine a sample representing the output signals with respect a first time period of a sleep session; provide, during the sleep session, the sample to a prediction model at a first time of the sleep session to predict a sleep stage of the subject occurring around a second, later time of the sleep session; determine, prior to the second, later time, intervention information based on the prediction of the sleep stage, the intervention information indicating one or more stimulator parameters related to peripheral stimulation; determine a sleep disturbance risk of providing an intervention around the second, later time to the subject; determine if the sleep disturbance risk does not satisfy a predetermined risk criteria; cause, based on the intervention information and the determination that the sleep disturbance risk does not satisfy the predetermined risk criteria, the one or more stimulators to provide the intervention to the subject around the second, later time of the sleep session; and decrease the intervention based on the determination that the sleep disturbance risk satisfies the predetermined risk criteria.