This wearable could help you stop snoring, and it's $40 off | Mashable
OSA Diagnostics - STAR
Meet the tiny, wireless sleep apnea diagnostic wearable headed for the US | TechCrunch
JCM | Free Full-Text | Clinical Usefulness of New R-R Interval Analysis Using the Wearable Heart Rate Sensor WHS-1 to Identify Obstructive Sleep Apnea: OSA and RRI Analysis Using a Wearable Heartbeat Sensor