Sleep Clinics in Alton, IL: How to Choose One

Quick answer: This guide covers four sleep clinics listed in Alton, Illinois, all of which show AASM accreditation in the directory. It explains how to compare services, what to expect before and during testing, general insurance and access points, and questions to ask before booking. It is directory information, not medical advice.

Sleep clinics in Alton at a glance

Alton has four clinics in this directory. Three list insomnia treatment, while two list sleep apnea treatment. Two list home sleep testing or in-lab polysomnography. One clinic lists circadian rhythm disorder, narcolepsy, and parasomnia treatment. All four list AASM accreditation. The table below shows each clinic, its area and ZIP code, phone number, and listed services.

Clinic	Area / ZIP	Phone	Listed services
OSF Sleep	Alton, IL 62002	(618) 463-5346	Circadian Rhythm Disorder Treatment, Insomnia Treatment, Narcolepsy Treatment, Parasomnia Treatment
OSF Sleep - Ottawa	Alton, IL 62002	(618) 465-2571	Circadian Rhythm Disorder Treatment, Insomnia Treatment, Narcolepsy Treatment, Parasomnia Treatment
Parkland Health Center Bonne Terre	Alton, IL 62002	(618) 433-6616; (618) 463-7777	Insomnia Treatment, Sleep Apnea Treatment, Home Sleep Test, Sleep Study
Sleep Diagnostics Center	Alton, IL 62002	(618) 433-6616	Insomnia Treatment, Sleep Apnea Treatment, Sleep Study, In-Lab Sleep Testing (Polysomnography)

For individual details, visit the OSF Sleep clinic page, the OSF Sleep - Ottawa clinic page, the Parkland Health Center Bonne Terre clinic page, and the Sleep Diagnostics Center clinic page. You can also browse the Alton city page and the Illinois state page.

How to choose a sleep clinic in Alton

Start with the reason for the visit. If you are seeking help for insomnia, three clinics list insomnia treatment. If you are seeking help for sleep apnea, two clinics list sleep apnea treatment. If you need a home sleep test, one clinic lists that service. If you need in-lab sleep testing, one clinic lists polysomnography. If you need care for circadian rhythm disorders, narcolepsy, or parasomnia, two clinics list those services. Match the service list to your referral or clinician's request before calling.

Accreditation is one factor to review. All four clinics show AASM accreditation in the directory. You can also read about how to choose a sleep clinic in the sleep clinic selection article. For service background, see the sleep study article and the sleep apnea treatment options article.

What to expect

Procedures vary by clinic and by test type. A home sleep test is generally performed at home, while in-lab polysomnography is performed in a sleep lab. Insomnia treatment, sleep apnea treatment, and other listed services may involve different steps. Ask the clinic what to bring, how long the appointment lasts, and whether you need a referral. The directory does not list wait times, prices, or patient reviews, so confirm those details directly with the clinic.

Insurance, cost and access

Insurance coverage and out-of-pocket costs vary by plan, provider network, and service. Medicare and private plans may have different rules for sleep studies and related care. Contact the clinic and your insurer before booking. Ask whether the clinic accepts your plan, whether prior authorization is needed, and what costs you may owe. The sources listed for this guide include the American Academy of Sleep Medicine, NHLBI, and Medicare.gov.

Neighborhoods and access

All four listed clinics are in Alton, Illinois, with ZIP code 62002. The listed addresses are One St. Anthony Way, 2 Saint Anthonys Way, 4 Memorial Drive Suite 230, and One Memorial Drive 141. Two clinics share the phone number (618) 433-6616. Because the directory does not list neighborhood names, transit options, or parking details, confirm travel and parking information directly with the clinic.

Questions to ask before booking

• Which sleep services do you provide for my concern?
• Is a referral required?
• Do you offer home sleep testing, in-lab testing, or both?
• Which insurance plans do you accept?
• What are the appointment and testing steps?
• What should I bring or avoid before the appointment?

Frequently asked questions

How many sleep clinics are listed in Alton, IL?

Four clinics are listed in Alton, Illinois in this directory.

Are the clinics accredited?

All four clinics show AASM accreditation in the directory.

Which clinics list insomnia treatment?

OSF Sleep, OSF Sleep - Ottawa, Parkland Health Center Bonne Terre, and Sleep Diagnostics Center list insomnia treatment.

Which clinics list sleep apnea treatment?

Parkland Health Center Bonne Terre and Sleep Diagnostics Center list sleep apnea treatment.

Do any clinics list home sleep testing?

Parkland Health Center Bonne Terre lists home sleep test among its services.

Does the directory list prices or wait times?

No. The directory does not list prices, wait times, ratings, or patient reviews. Contact each clinic directly for those details.

How we built this guide

This guide was built from directory data for Alton, Illinois, including clinic names, addresses, phone numbers, services, credentials, and links. Sources include the American Academy of Sleep Medicine, NHLBI, and Medicare.gov. Last updated 2026-10-26. Byline: Sleep Clinic Directory Editorial Team. This is directory information, not medical advice.