US Patent 9870689 Codependent alarm device

Aspects optimize an alarm time as a function of biometric sleep data. Biometric sleep data is generated from monitoring a sleeping person. A readiness period of time is determined as required for a selected caregiver to complete a task prior to tending to the sleeping person. A probability that the sleeping person will wake within the readiness time period from a current time is determined from the biometric sleep data of the sleeping person. Accordingly, an alarm is initialized (given, broadcast, etc.) to the selected caregiver in response to determining that the wake probability meets a threshold certainty value.