Sleep Medicine

Norwalk Hospital’s one-year Sleep Medicine Fellowship is accredited by the American Academy of Sleep Medicine and the ACGME.

Our Mission: To provide outstanding training in clinical sleep medicine and a scholarly environment conducive to the development of academic sleep medicine physicians.

Under the directorship of Dr. Ian Weir, we offer fellows intensive training in sleep medicine for adults and children. Our comprehensive program consists of a one-year training period dedicated to clinical training to acquire the clinical skills to practice sleep medicine.

Program Information

Graduates of the Norwalk Hospital Sleep program are expertly trained in clinical patient care, teaching and research. The majority of our fellows enter careers in clinical sleep medicine as well as clinical educator positions. Please learn more about our program below:

Clinical Training Program

The Norwalk Hospital Sleep Disorders Center is a six-bed facility regionally known as a Center of Excellence. We perform more than 1,000 sleep consultations, 1,200 polysomnograms, and 100 MSLT and MWTs per year. Our highly experienced and multidisciplinary staff provides state-of-the-art treatment for all sleep disorders, including disordered breathing, restless leg syndrome, REM behavioral disorder and narcolepsy. In addition, we offer comprehensive exposure to pediatric sleep medicine. Our Director of Pediatric Sleep Medicine evaluates infants and children of all ages at our dedicated pediatric sleep facility. Furthermore, fellows learn how to manage insomnia patients in our Insomnia Center, utilizing cognitive behavioral therapy, relaxation training, pharmacotherapy and neurofeedback. Our formal curriculum places a high priority on clinical training of fellows, residents and medical students.


  • Journal club
  • Core lecture series
  • Sleep research conference
  • Yale sleep lecture series
  • Case conference
  • Director’s rounds
  • Board review series
  • Practicum series on scoring
  • CPAP management
  • Actigraphy and more

Research Training

Fellows receive protected research time during their clinical training and collaborate in ongoing clinical trials at the Sleep Center. Fellows are also encouraged to create their own research project based on their individual interests. In the past, fellows have performed research in the areas of postoperative OSA, insomnia, COPD and sleep, sleep and infertility, pediatric sleep disorders, home sleep testing and more.

How to Apply

Physicians who have completed a minimum of an ACGME-accredited residency program in internal medicine, family medicine, neurology, pediatrics or psychiatry are welcome to submit an application. Submissions from the Electronic Residency Application Service (ERAS) are accepted.

For more information about the Norwalk Hospital Sleep Medicine Fellowship, contact:
Arber Lecaj, Sleep Fellowship Coordinator
Telephone:  203-852-2670

Faculty and Staff

Ian D. Weir, DO

Program Director – Sleep Fellowship
Associate Director, Sleep Disorders Center
Director, Insomnia Center

A graduate of the Nova Southeastern University College of Osteopathic Medicine, Dr. Weir performed his residency at Johns Hopkins University’s Sinai Hospital. He completed pulmonary and critical care fellowships at Yale School of Medicine and Norwalk Hospital, as well as a sleep fellowship at Norwalk Hospital. He is board-certified in internal medicine, pulmonary, critical care and sleep medicine.

Christopher Manfredi, DO

Director, Sleep Disorders Center

A graduate of the University of New England College of Osteopathic Medicine, Dr. Manfredi performed an internship at St. Barnabas Hospital and was a resident and fellow at both Yale School of Medicine and Norwalk Hospital. He is board-certified in critical care, pulmonary disease and sleep medicine.

Lewis Kass, MD

Director, Pediatric Sleep Disorders Center

A graduate of the State University of New York Downstate School of Medicine, Dr. Kass completed a pediatrics internship and residency at the State University of New York Downstate Medical Center, as well as a pediatrics/pulmonary fellowship at Yale School of Medicine. He is board-certified in pediatrics and pediatrics/pulmonary.


Susan Jacoby, APRN

Insomnia Therapist

A graduate of psychiatric nursing from Fairfield University, Susan’s clinical experience is focused on insomnia. She is trained in behavioral sleep medicine and is a certified neurofeedback and biofeedback provider.