“Wearing the sleep appliance has changed my life. Literally. I have more energy during the day than I ever had and I am able to focus both at work and at home because I am rested from a full night of sleep.”
— John A.

Located in St. Louis, Missouri, Ellis Sleep Center is owned and operated by Dr. Holly Ellis.
As a Diplomate of the American Board of Dental Sleep Medicine, Dr. Ellis brings a clinical and effective approach to treating obstructive sleep apnea (OSA). Her focus is on treating patients diagnosed with mild to moderate OSA through the use of a comfortable and manageable oral sleep appliance that ensures they get the rest their body truly needs.
Ellis Sleep Center Doctors
Our team at Ellis Sleep Center works directly with our patients and their care providers to design, create, and implement a treatment plan specific to the patient needs. This approach to OSA ensures that patients receiving treatment will have the comfortable and affective solution they need to get they sleep they deserve.
Loud, frequent snoring
High Blood Pressure
Breathing pauses (a bed partner may hear a person gasp for breath in their sleep)
Excessive daytime sleepiness (the ability to fall asleep anywhere, at any time)
Memory problems
Irritability or moodiness
Decreased sex drive or impotence
Morning headaches
Acid reflux, indigestion or heartburn
The traditional CPAP (continuous positive airway pressure) machine is commonly used to treat OSA. Frequently uncomfortable, noisy, and difficult to wear while sleeping, CPAP treatment is often abandoned by patients for many reasons including comfort, noise, and look. An oral sleep appliance is a device that is custom made to fit each patient precisely. Similar to a retainer or sports mouth guard, the oral sleep appliance is worn by the patient at night and holds the lower jaw in a position that allows an open airway for continuous breathing.
If you’re constantly tired, snore at night, or wake up gasping for air, you might be dealing with more than just poor sleep, you could have sleep apnea. Many people in St. Louis live with undiagnosed sleep apnea for years, thinking fatigue is just part of getting older or working hard. At Ellis Sleep Center, we specialize in dental sleep medicine that helps people sleep and breathe better, without the hassle of a CPAP machine.
If you’ve been diagnosed with sleep apnea, your doctor may have told you CPAP is the only solution. But here’s what they don’t always say: many patients can’t tolerate CPAP, and there are highly effective alternatives. At Ellis Sleep Center in St. Louis, we help people just like you sleep better without the mask, using custom oral appliance therapy designed to fit your life.
When people think of sleep apnea, they often picture an older man who snores loudly. But here's the truth: women get sleep apnea too and they’re often misdiagnosed or overlooked. In recent years, more women in St. Louis and beyond are discovering that fatigue, brain fog, and mood swings aren't just part of life, they could be symptoms of a serious sleep disorder.
Dr. Ellis joins Chelsea Haynes on Fox 2 to discuss treating sleep apnea.
“Wearing the sleep appliance has changed my life. Literally. I have more energy during the day than I ever had and I am able to focus both at work and at home because I am rested from a full night of sleep.”
— John A.
“I’ve been going here for about a year. I have mild sleep apnea and Dr. Ellis had a mouth piece made for me that is working very well over anything else that I have ever used. Both me and my other half have been sleeping way better at night with my reduced snoring.”
— Kevin S.
“I had my first visit recently and everyone was extremely friendly and knowledgeable! I really appreciate that Dr. Ellis specializes in sleep problems, and that I can get quality help all at one location! Highly recommend!”
— Abby Z.
“Fast forward to a year later, I am so happy with the results I have achieved from my dental appliance! I now get a great night's sleep and my husband has no complaints! This has been a game-changer for my health as well. Thank you Ellis Sleep Center! “
-Amy B.