
Dr. Vassilopoulos is the Clinical Content Lead for Sleep Reset and Assistant Professor at Yale School of Medicine. She has co-authored peer-reviewed research articles, provides expert consultation to national nonprofit organizations, and chairs clinical committees in pediatric health psychology for the American Psychological Association. She lives in New England with her partner and takes full advantage of the beautiful hiking trails.

Dr. Shiyan Yeo, MD | Internal Medicine Physician | Sleep Medicine Expert
Dr. Yeo is a sleep medicine clinician with a holistic approach to care, focusing on the connection between sleep, lifestyle, and overall well-being. She is passionate about helping patients achieve better sleep through evidence-based, personalized treatment plans that address the whole person, not just their symptoms. Dr. Yeo is dedicated to empowering individuals with practical tools to improve their sleep and long-term health. She lives in California and enjoys spending time outdoors, exploring local hiking trails with her family.