Northwestern University Center for Circadian and Sleep Medicine

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Northwestern University Center for Circadian and Sleep Medicine The official page of the Center for Circadian and Sleep Medicine (CCSM) at Northwestern University, Feinberg School of Medicine.

Join our study on Circadian Rhythms and Delayed Sleep-Wake Phase Disorder.
05/20/2026

Join our study on Circadian Rhythms and Delayed Sleep-Wake Phase Disorder.

Join our study on Circadian Rhythms and Delayed Sleep-Wake Phase Disorder!
11/12/2025

Join our study on Circadian Rhythms and Delayed Sleep-Wake Phase Disorder!

Do you have trouble falling asleep or often sleep late? If so, you may be eligible to join our study on Delayed Sleep-Wa...
10/14/2025

Do you have trouble falling asleep or often sleep late? If so, you may be eligible to join our study on Delayed Sleep-Wake Phase Disorder. Click below to see if you qualify!

Title of Research Study: Physiological and Behavioral Basis of Circadian Rhythm Delayed Sleep-Wake Phase DisorderIRB Study Number: STU00221304Investigator: Phyllis C. Zee, MD, PhDSupported By: This research is supported by National Institutes of HealthKey Information about this research study:

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710 N. Lakeshore Drive
Chicago, IL
60611

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