Explore The Division of Sleep Medicine

Welcome to the Division of Sleep Medicine at Massachusetts General Hospital. Our Division provides state-of-the-art care for a wide range of sleep and circadian disorders. Our mission is to provide the highest standard of clinical care, to educate future generations of clinicians and scientists dedicated to sleep and circadian medicine, and to advance collaborative clinical and translational research in the fields of sleep and circadian medicine.

Patient Care

Each member of our Sleep Division provides consultation and care for patients affected by wide-range of sleep disorders. Patients seeking our services suffer from disorders such as sleep apnea, snoring, insomnia, narcolepsy, REM sleep behavior disorder, NREM parasomnia, restless leg syndrome and circadian rhythm disorders.

About patient care

Research & Clinical Trials

We are on the forefront of research into the causes and treatments of sleep disorders, including sleep apnea, insomnia, restless leg syndrome and beyond.

About our research

Education & Training

We offer a joint Mass General/Brigham & Women's Hospital Sleep Fellowship, subspecialty training in movement disorders of sleep and REM sleep behavior disorder, as well as postdoctoral research training to develop the next generation of experts in sleep medicine.

Learn more

Our Clinical Team

We work with physicians from across the hospital and at Massachusetts Eye and Ear to provide high-quality comprehensive care for sleep disorders of all kinds.

Dr. Sassower is a great doctor and he is just as much a great person. He has been my sleep doctor for about 20 years and I could find no better doctor at Mass General.

— patient in the Division of Sleep Medicine

Meet our clinical care team
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For Providers

For information about referrals and to request assistance obtaining prior authorization for in-lab clinical sleep studies at the Mass General (Wyndham) sleep laboratory, please visit our provider page.

Provider information