Data transfer cables for transferring data from a sleep testing device to a hand-held device or cell phone; data transfer connectors; downloadable software applications for providing instructions for use of a disposable sleep testing device.

Forehead-worn medical diagnostic devices incorporating adhesive patches connected via tubing to a nasal cannula for conducting sleep testing; disposable sleep medical testing device for use in the diagnosis of sleep-related breathing disorders; face-worn sleep medical testing device with in-built forehead-worn photoplethysmography (ppg) sensor and physiologic data recorder for collecting and recording data for use in determining ppg-derived respiratory efforts; disposable sleep diagnostic testing kits comprised of medical apparatus and instruments for the diagnosis of sleep apneas and hypopneas, all for use in homes, clinics, and hospitals; parts for all aforesaid goods, namely, medical tubing, medical ppg sensors, photoplethysmography sensor data recorders, nasal cannulas, and cases adapted therefor.