The present invention relates to a scheduling device (10, 10a, 10b) for scheduling patient monitoring by patient-accessible devices that are in the possession or reach of the patient for use by the patient. To enable unobtrusive patient monitoring that is more in line with patient's usage habits and causes less or no disruptions, the scheduling device comprises a diagnostics input (11) for receiving diagnostics, said diagnostics input (11) including a monitoring time window for acquiring data required by or useful for the diagnostics, a device identification unit (12) for identifying patient-accessible devices suitable for acquiring data required by or useful for the diagnostics, a tracking unit (13) for tracking one or more of the identified patient-accessible devices to identify their usage, and a controller (15) for checking, during said monitoring time window, availability of identified patient-accessible devices for data acquisition and for controlling available patient-accessible devices to acquire data required by or useful for the diagnostics during said monitoring time window.
