Sleep Center | Northfield Hospital & Clinics


Helping You Get a Restful Night of Sleep - Sleep Center

We are accredited by the American Academy of Sleep Medicine. We are committed to the Gold Standards of evidence based practices, staff and patient education, and continued quality improvement.  Our staff of Sleep Technologists are registered.

Northfield Hospital’s Sleep Center can help put the good back in your morning! One in four patients is at risk for sleep disorders, with 90 percent of those still unidentified. Through clinical study, we help you uncover your specific barriers to sleep. We use state-of the-art equipment and best practices to monitor sleep patterns in real time.  We focus on helping you identify and overcome sleep disorders.

What to expect during your sleep study

Generally, the study itself is a very relaxed and easy.  Every effort will be made to assure that you are comfortable and at ease with the surroundings. The study is done over an eight- to nine-hour period, typically beginning around 8 or 9 p.m.   A sleep study technician arranges sensors to monitor heart rate, oxygen levels and eye movement while  you sleep, then monitors you  from a workstation outside the sleep suite. Patients are usually able to leave by 5 or 6 a.m., and can shower up, get ready for their day and grab a quick snack from the breakfast bar before departing.  The study is typically divided into four parts:

  1. Preparation - This takes about an hour. The technician will attach sensors to your head, chest, arms and legs. During this time, the technician will explain the study to you, and answer any questions you may have.
  2. Lights out - We like people in bed between 10-11pm.  Up until that time, you may watch TV, read or use your computer to help you relax. After that time, the TV is turned off and the continued use of computers and cell phones is discouraged.
  3. Diagnostic phase - The technician will monitor your breathing patterns while you sleep.  You may be asked to change sleeping positions so that a thorough study can be completed.
  4. CPAP trial phase - If the technician has observed and documented enough events to diagnose obstructive sleep apnea, they will wake you to place a CPAP mask and will adjust the CPAP settings to best treat you.

Sleep Center Amenities

  • Two sleep suites that promise a hotel-like experience. Each suite has its own bathroom with shower so you can prepare for your day in the morning when you wake up. 
  • Rooms are climate controlled
  • Sleep Number double beds
  • Special lighting to replicate patients’ sleeping conditions at home

Home Sleep Study

We offer home sleep tests (HST), for patient who may not qualify for an initial in lab sleep text. HST's must be ordered by a physician who is board certified in Sleep Medicine.

Sleep Study Hours

We do sleep studies 7 days a week, around the clock.

How to get started

Speak with your healthcare provider to see if a sleep study may be appropriate for you. You must have a referral. For more information, contact us at 507-646-1099.  

To Make an Appointment or to Change or Cancel an Appointment

Sleep studies are scheduled at varying times throughout the day. Appointments can be scheduled at night, during the day or even on weekends.  Please call 701-234-9667 to schedule your sleep study. 

Frequently Asked Questions

Do I see my provider at the Sleep Center?

No, Our providers do not see patients in the Sleep Center. 

How do I get equipment or parts?

If you need equipment or parts for your equipment, call your equipment company.

How can I get a copy of my sleep study?

Please click HERE and fill out the form. Then fax it to 507-646-1192 or call 507-646-1183.

How much does a sleep study cost?

If you have a pricing or insurance question, call 507-646-1084.

 Do I need a referral?

A sleep study does require a referral or an order from your provider. You cannot self-refer for a test. A prior authorization will be required by your referring providers office.

Treatment Options

Continuous Positive Airway Pressure system – CPAP  - is a widely accepted treatment for obstructive sleep apnea. CPAP is positive airway pressure therapy, which includes using a bedside device to deliver pressurized air through a small mask or nasal pillow system. Regular use of CPAP therapy can dramatically improve the quality of rest, but it doesn’t always happen overnight. If you are in need of a CPAP machine, we will provide you with some medical device companies that sell them. The Sleep Center does not sell, service or provide data downloads for CPAP machines. 

Dental Appliance Therapy  -  Another effective treatment option is dental appliance therapy. A dental sleep appliance is custom made for you and fits like a sports mouth guard. It is only worn when sleeping. It supports the jaw in a forward position to help maintain an open upper airway. Research shows that dental appliance therapy is an effective treatment option for snoring and obstructive sleep apnea. 

If you would like to learn more about dental appliance therapy or to see if your medical insurance provides coverage, please contact Dr. Noack for a consultation at his Professional Dental Group office in Northfield at 507-645-5264.

About Dr. John Noack

Dr. Noack works with the Northfield Sleep Center to provide dental appliance therapy. He specializes in dental appliances as an alternative to CPAP therapy. He has been a member of the American Academy of Dental Sleep Medicine since 2006 and regularly participates in ongoing training in dental sleep medicine. To make an appointment with Dr. Noack, please call Professional Dental Group at 507-645-5264.

Nutrition Services

Some people have sleep problems due to their weight or eating habits. If your healthcare provider has recommended that you lose weight or change your eating habits as part of your treatment plan, you can schedule an appointment to meet with our   team of registered dietitian nutritionists. They will help you understand the vital relationship between nutrition and your health and getting a good night's sleep. They will provide education and counsel on nutrition and weight-loss strategies. Please call 507-646-1410 for more information. 

Sleep Study Costs/Insurance Coverage

Every person has their own individual insurance plan and a deductible. For this reason, you will need to call your insurance company to find out if the sleep study will be covered.  Call the number on the back of your insurance card.  If you need assistance, please call 507-646-1080.

Sleep Center services are provided in partnership with Precision Diagnostic Services (PDS), Inc. For more information, contact us at 507-646-1099.

Care Team - Top Doctors & Providers


O’Halloran, Gerard, MD

Ear, Nose, Throat (Otolaryngologist), Sleep Medicine


Sleep Center - Northfield

(507) 646-1099
By appointment
2000 North Avenue, Northfield, Minnesota 55057
A Room at Sleep Center - Northfield