The program integrates resources from the BIDMC, Boston Children's Hospital, and Massachusetts General Hospital (MGH). A pediatric track option (1 slot) is based primarily at BCH, and is about 55% pediatric sleep medicine, offering a comprehensive exposure. Those selected to the adult track (3 slots) spend 25% of time at BCH, so fellows emerge broadly trained in sleep medicine. Special exposures are wearables, respiratory failure, circadian medicine, and hands-on sleep laboratory training.