A/Prof Phillips’ internationally recognised clinical research has focused on unveiling mechanisms that link Obstructive Sleep Apnoea (OSA) to cardiometabolic disease and testing responses to treatment. This work includes randomised controlled trials as well as experimental studies. Their impact and relevance extend beyond the sleep field to cardiology, obesity, and endocrinology. His RCT’s have examined cardiometabolic outcomes including blood pressure control, post prandial lipidemia, insulin sensitivity and weight loss. He is ranked in the top 0.081% of authors globally, for expertise in OSA, based on the quality of his papers since 2010 (Expertscape.com). In other work, he was the first in the world to evaluate the impact of OSA on arterial stiffness and with other collabaorators, the first to use a CPAP withdrawal paradigm to better understand the health consequences of OSA and the first to explore pharmacological weight loss in OSA.