Our Advisory Board consists of:  

Douglas B. Kirsch, MD, FAAN, FAASM

Eric A. Nofzinger, MD

Thomas Penzel, Prof. Dr.

Manisha Witmans, MD, FRCPC, FAASM


Douglas B. Kirsch, MD, FAAN, FAASM

Dr. Kirsch is the Medical Director of Atrium Health Sleep Medicine, where he maintains an active clinical sleep practice and oversees Sleep Medicine for the Charlotte-based health system.

He is a Clinical Professor in the Department of Medicine at the UNC School of Medicine and a Professor in the Departments of Internal Medicine and Neurology at Atrium Health. He was the 2018-19 President of the American Academy of Sleep Medicine and was the Program Chair for the SLEEP Meeting in 2012-14 (the world’s largest scientific meeting for Sleep Medicine).

Dr. Kirsch has educated sleep clinicians across the country, speaking at national meetings and major universities. He has authored many book chapters and peer-reviewed publications, edited several books, and has been interviewed on sleep medicine topics by CNN, the New York Times, NPR and other national news sources. He is board-certified in Neurology and Sleep Medicine and is a Fellow of both the AAN and AASM.

“The future of Sleep Medicine increasingly appears to be an ongoing assessment of patient’s sleep outside the laboratory setting. Understanding how best to deploy home-based sleep assessment tools will be an important step for future care of patients with sleep disorders. SleepImage offers a unique method of sleep assessment in a consumer-friendly package that should help identify and follow patients in a longitudinal manner with a goal of optimizing their long-term health.”


Eric A. Nofzinger, MD

Dr. Nofzinger was a Professor of Psychiatry and the Director of the Sleep Neuroimaging Research Program at the University of Pittsburgh School of Medicine and the Founder, and Chief Medical Officer of Ebb Therapeutics, an insomnia medical device company. He is a Past-President of the Sleep Research Society and a Past-President of the Sleep Research Society Foundation.

He has over 30 years’ experience in clinical sleep disorders medicine and in sleep research. His work has focused on pioneering functional neuroimaging methods for studying sleep and the development of novel brain based interventions for the treatment of sleep disorders.

Dr. Nofzinger has presented and published extensively on the results of his sleep neuroimaging research in leading journals and textbooks, including SLEEP, the Archives of Internal Medicine, the Archives of General Psychiatry, the American Journal of Psychiatry, Sleep Medicine Reviews, and Brain. Dr. Nofzinger co-edited the first textbook related to the neuroimaging of sleep entitled Neuroimaging of Sleep and Sleep Disorders published by Cambridge University Press.

Dr. Nofzinger is excited to join the SleepImage scientific advisory board to assist in bringing the only FDA cleared device to measure sleep quality, sleep duration and sleep apnea to market that has rigorous scientific backing based on known changes in autonomic nervous system regulation across the sleep/wake cycle with accuracy comparable to traditional PSG.


Thomas Penzel, Prof. Dr.

Thomas Penzel is the director of research of the Interdisciplinary Sleep Medicine Center at the Charité – Universitätsmedizin Berlin, Germany. He received the Bial award for Clinical Medicine in Portugal, the Bill Gruen Award for Innovations in Sleep Research by the American Sleep Research Society, and the distinguished research award by the Chinese Sleep Research Society. He was elected as IEEE EMB distinguished lecturer for 2021-2023. Currently he is president of the German Sleep Society and Adcom member of IEEE EMBS.

He is editor-in-chief of the journal Sleep and Breathing, and editorial board member of several journals in the field of sleep research and biomedical engineering. He has published 400 journal papers, 80 book chapters, and edited several books.

His research interests are sleep medicine, biomedical signals, wearables for sleep recording, the cardiovascular and the neural system related to the sleep-wake regulation, and the pathophysiology of sleep disordered breathing.


“Sleepimage can provide additional information about sleep quality and sleep disordered breathing on subjects suffering from unrestful sleep”.


Manisha Witmans, MD, FRCPC, FAASM

Manisha Witmans is a passionate sleep medicine physician dedicated to improving sleep quality and patient care for children and their families. She advocates for novel and emerging technologies to solve sleep problems. She is an Associate Clinical Professor at the University of Alberta.

She graduated with a degree in Medicine from University of Saskatchewan in 1997, and residency in pediatrics from University of Calgary and Alberta Children’s Hospital in 2000. She subsequently obtained additional training in pediatric respirology and sleep medicine from University of Calgary followed by additional sleep medicine training at Children’s Hospital Los Angeles in California.

Dr. Witmans developed the pediatric sleep program at the Stollery children’s hospital in Edmonton. She is now in community practice and continues to be involved in research endeavours to help address sleep problems in children. She has collaborated on publications in sleep medicine, including the current international guidelines on the use of polysomnography in pediatric respiratory and non-respiratory sleep disorders. She is involved in various executive roles involved in sleep medicine diagnostics and certification.

“Sleep disorders are highly prevalent and affect all aspects of an individual’s life and capacity to function optimally. As a clinician, it is difficult to correlate polysomnographic findings to an individual’s sleep complaints and the nature of the technology has limited its widespread use. Sleep image, using cardiopulmonary coupling, not only allows sophisticated measurement of physiological signals but could potentially be able to “fingerprint” sleep quality and in turn accurately diagnose sleep disorders relatively easily”.