Abstract: A sleeping person is monitored by a system having a sensor unit and a base unit. The sensor unit outputs a sensor signal corresponding to each of at least two body function parameters of a sleeping person, such as a heart-rate, a respiratory rate and/or a body temperature of the sleeping person. The base unit determines whether an alarm condition is present based on each sensor signal output from the sensor unit and, in response to a detected alarm condition, generating an actuation signal for actuating an audible signal, such as a recording of a voice of a caregiver, in proximity of the sleeping person. The sensor unit also includes a shock-delivering device, and the base unit generates an actuation signal for actuating the shock-delivering device for stimulating the sleeping person to do one of breathe and enter a less deep sleep pattern.