The Wisconsin Sleep Cohort is a closed cohort, meaning we are not recruiting new participants. However, we continue to engage our existing cohort members in ongoing opportunities to “sleep for science.”

Thank you to our amazing participants, who have shared their time and energy with us for over 30 years!

Learn more about our current research protocol (Midlife Sleep Study) here.

Learn more about the history of the Wisconsin Sleep Cohort Study here.

Read past WSC Study newsletters here.


We welcome current and past WSC Study participants to contact our lab manager, Amanda Rasmuson, with any questions. We value the opportunity to stay in touch, so if you have an updated address or phone number to share, please don’t hesitate to reach out. Amanda can be reached by phone: (608) 265-5548 or email: