ABSTRACT
The American Journal of Respiratory and Critical Care Medicine· AmakATS and the American Journal of Respiratory Cell and Molecular Biology· as well as non-American Thoracic Society journals JAMA, lite Lancet Respiratory tledicine, and Cltest are reviewed in this article as outstanding studies in the field of sleep medicine that were published in 2020 and 2021. We notably highlight the influence of the coronavirus disease (COVID-19) pandemic on the provision of sleep care, significant advancements in machine learning, and the phenotyping of obstructive sleep apnea (OSA). precision health, new epidemiologic insights on the causes, effects, and treatment response of OSA, as well as improvements in our knowledge of obesity and respiratory pathophysiology in sleep.