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Sleep Disorders

Sleep disorders can leave you with a feeling of constant sleepiness that is both frustrating and hazardous.

Man in bed with CPAP machine sleeping

St. John's Sleep Center is an accredited center that provides sleep testing for infants, children and adults. A physician referral is required for a sleep study. If you suspect you have a sleep disorder, see your primary care physician. While insomnia is a very common sleep disorder, it does not require a sleep study for diagnosis.

St. John’s Sleep Center is located in HSHS St. John's Health Center on South 6th Street. The Sleep Center conducts studies on Sunday through Friday nights. 

This is a hospital outpatient department.

It is recommended to contact your insurance company to confirm coverage for any medical procedure as insurance coverage may vary between hospital locations and independent locations.

To learn more, call 217-757-6999.

We assist in the diagnosis and treatment of: 

  • Obstructive sleep apnea
  • Periodic limb movements of sleep
  • Nocturnal seizures
  • Narcolepsy
  • Other sleep disturbances

Sleep Assessment

Patients who come in for a sleep assessment receive basic CPAP education and information on CPAP mask-related issues. The assessment also covers general sleep-related questions and concerns. A physician's order is required. 

Inpatient Sleep Disorders Team

This team identifies hospitalized patients suspected of having obstructive sleep apnea (OSA). These patients are evaluated by a member of the Sleep Disorders Team and receive education, an appointment for an outpatient sleep study and a follow-up visit with their primary care physician.

Pre-operative Outpatient OSA Screenings

An estimated 10 percent of surgery patients have undiagnosed obstructive sleep apnea (OSA). OSA can create post-operative complications. If the patient is deemed at-risk for OSA before surgery, precautions are taken. Prior to discharge, the patient’s primary care physician is notified so an outpatient sleep study and follow-up visit can be scheduled.

Pap Naps

Adjusting to the mask for a continuous positive airway pressure (CPAP) machine can be difficult. If you or someone you know is having difficulty, St. John's Sleep Center can help. Our PAP Naps are shorter evaluation sessions that provide education, as well as a professional, to give advice on what kind of mask will work best for you. These two- to five-hour sessions at the Sleep Center allow participants to "nap" with a mask on in the facility. A physician referral is needed for this service.