Charles A. Czeisler is the Baldino Professor of Sleep Medicine, Director of the Division of Sleep Medicine at Harvard Medical School and Chief of the Division of Sleep Medicine in the Department of Medicine at Brigham and Women’s Hospital in Boston, Massachusetts. He is an Affiliate Faculty Member in the Neuroscience Program at Harvard Medical School and the Health Science and Technology Program at Harvard Medical School/Massachusetts Institute of Technology.

Dr. Czeisler graduated with a degree in Biochemistry and Molecular Biology from Harvard College, where he was inducted into Phi Beta Kappa in 1999. He received his Ph.D. in Neuro- and Bio-behavioral Sciences and his M.D. from Stanford University.