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Accredited Diagnostic and Treatment Sleep Center Largest Sleep Center in New York City Established 1990

Business Description

Who we are? The Sleep Disorders Institute (SDI) is an accredited diagnostic and treatment center that is dedicated to the care of adults and children with disorders of sleep and wakefulness. SDI is a leading provider of services to those with sleep apnea, snoring, insomnia, restless legs syndrome, narcolepsy, and other sleep-related conditions. The Sleep Disorders Institute offers the highest quality of care available today. SDI is staffed by board-certified sleep specialists who are recognized as leaders in their field. The physicians have specialties in pulmonary medicine, pediatrics, neurology, and psychiatry, with in-depth fellowship and training experience. SDI is the largest sleep center in New York City and is actively involved in clinical research.

Accreditations & Associations 

SDI is one of only 8 centers in the United States that hold AASM accreditation as a full-service sleep disorders center, a sleep medicine fellowship, and a behavioral sleep medicine fellowship.

What is a sleep disorder?

A Sleep Disorder is any disruption in the normal sleep pattern. According to the National Sleep Foundation, more than 50 million Americans suffer from a sleep disorder at some time in their lives. These disorders have a significant impact on the daytime functioning, quality of life, and health of the sufferer. For example, research data have shown that people with insomnia report more problems with attention, concentration, and memory than healthy individuals; and they are more likely to suffer from psychiatric disorders like depression and anxiety. Those who suffer from sleep apnea, a sleep-related breathing disorder, are at greater risk for high blood pressure, cardiac arrhythmias (irregular heartbeats), stroke, and death.




Regular Hours

Sat - SunClosed

Payment method
insurance, master card, visa
Hell's Kitchen, Midtown Manhattan

AASM Accreditation - 1 of 8 in the US


Zasypayko, Sergey, Md - Sleep Disorders Institute

Physicians & Surgeons, Sleep Disorders, Research Services, Sleep Disorders-Information & Treatment
Other Information

By Appointment Only: Yes


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The staff are great and they help me out with by sleep study and show me how to understand why I have a hard time sleeping. I got a new Cpap Machine And now I sleeping great and well rested .


CPAP test

Had my 2nd test done 1/12/15 and the staff was excellent as usually, the technician I had this time answered all my question in a very professional way. I highly recommend this facility.

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