
Sleeping with an open mouth is a common occurrence in older adults, and while it may seem harmless, it can indicate underlying health issues. Age-related physical changes, such as decreased blood circulation to the nasal lining, reduced mucus production, and a deviated septum, contribute to nasal congestion, making it difficult for older individuals to breathe through their noses. This often leads to mouth breathing during sleep. Additionally, conditions like sleep apnea, which causes the airways to collapse during sleep, can also result in open-mouth sleeping as the body struggles for air. While it may be a temporary response to nasal congestion, chronic mouth breathing can have adverse effects on oral and overall health, leading to issues such as dry mouth, cavities, and even heart disease.
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What You'll Learn

Nasal congestion
One of the physical changes that occur with age is the softening of the tissue in the nose and throat. This results in a narrower airway, which further exacerbates the problem of nasal congestion. Additionally, age-related anatomical changes, such as a deviated septum, can also cause blockages in one nostril, leading to mouth breathing.
To address nasal congestion, older adults can try various remedies and interventions. One option is to use nasal sprays, which can help reduce congestion and improve breathing through the nose. Adjusting sleep positions can also be beneficial; sleeping on the side or in an upright position can help open the airways and reduce mouth breathing. Supportive pillows and body position sensors with alarms can assist individuals in maintaining these sleep positions.
In more severe cases of nasal congestion, medical interventions may be necessary. Continuous Positive Airway Pressure (CPAP) machines are often recommended for individuals with sleep apnea, as they deliver pressurised air to the nose and mouth through a mask, helping to keep the airways open. Oral appliances, such as the DNA appliance, can also be used to reshape and widen the palate and airway, making nasal breathing easier.
It is important to note that chronic mouth breathing due to nasal congestion can lead to several health complications, including dry mouth, dental issues, and increased risk of cavities. Therefore, addressing nasal congestion and promoting nasal breathing is crucial for maintaining overall health and well-being.
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Age-related physical changes
Nasal structural changes: The tissue in the nose and throat becomes less firm with age, narrowing the airway and making it more difficult to breathe through the nose. This can be exacerbated by a deviated septum, which occurs when the wall between the nostrils bends or becomes crooked, blocking one nostril.
Decreased blood circulation to the nasal lining: Reduced blood flow to the nasal passages can contribute to congestion and obstruction.
Reduced mucus production: Lower mucus levels can thicken the mucus in the nose, making it harder to breathe.
Sleep apnea: This condition becomes more common with age and can cause the airways to collapse or restrict during sleep, leading to breathing pauses that can last from a few seconds to minutes. The brain's natural response to these breathing interruptions is often to gasp or choke for air, causing the mouth to open as the body seeks additional air pathways.
Enlarged adenoids and tonsils: These patches of tissue in the back of the throat and above the tonsils can obstruct airflow and cause mouth breathing.
Treating these age-related physical changes can help improve breathing and reduce mouth breathing during sleep. Treatments may include nasal sprays, CPAP machines, positional adjustments, and in some cases, surgery.
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Sleep apnea
Obstructive sleep apnea is the most common form of sleep apnea. It occurs when the soft tissues in the mouth and throat collapse during sleep, blocking the airway. This can be caused by a variety of factors, including narrow mouths and palates, large tongues, and swollen adenoids. In children, swollen adenoids are a common cause of sleep apnea, while in older adults, the condition is often associated with obesity, advanced age, abnormal upper airway anatomy, and family history.
The symptoms of sleep apnea include snoring, daytime sleepiness, impaired cognitive functioning, headaches, and dry mouth. Seniors with sleep apnea may also experience resistant hypertension, where blood pressure medication becomes ineffective, and they may be more susceptible to sudden cardiac arrest. If left untreated, sleep apnea can lead to serious health issues, including cardiovascular disease, high blood pressure, type 2 diabetes, cognitive decline, and even death.
Treatments for sleep apnea include the use of continuous positive airway pressure (CPAP) machines, which deliver a stream of pressurised air to the nose and mouth to keep the airways open. Oral appliances, such as the DNA appliance, can also be used to reshape and widen the palate and airway, making nasal breathing easier. Additionally, tongue-tie treatments and orthodontic treatments can help to reposition the jaw and teeth, improving airflow.
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Dry mouth and other health complications
Dry mouth is a common symptom of mouth breathing, which can lead to a host of other health complications. People who sleep with their mouths open often wake up with a dry mouth, feeling unrested, and may even experience daytime sleepiness and fatigue. Dry mouth can cause difficulty swallowing and speaking, mouth pain, and can increase the risk of cavities, gum disease, and other dental issues.
Mouth breathing can negatively impact oral health, as the dry air irritates the gums and teeth, leading to gum inflammation (gingivitis) and cavities. The restricted airflow caused by mouth breathing can also lead to sleep apnea, a serious condition where breathing repeatedly stops and starts during sleep, causing the brain to panic and the body to gasp for air. This can result in a habit of mouth breathing as the body seeks additional air pathways. Sleep apnea can be treated with continuous positive airway pressure (CPAP) therapy, which delivers pressurised air through a mask to keep the airways open.
Chronic mouth breathing has also been linked to various health complications, including heart disease. In children, it can affect jaw development and facial structure, leading to a narrowed jaw, elongated facial features, and potential dental misalignment. These changes can have lasting effects on both appearance and functional aspects of breathing and speaking if not addressed early.
In addition to dry mouth, other health complications associated with mouth breathing include nasal congestion, allergies, enlarged adenoids or tonsils, deviated septum, and sinus issues. Addressing these underlying conditions can help improve nasal breathing and reduce mouth breathing. This can be done through medication, allergy treatments, surgery, or simple solutions like nasal sprays, adjusting sleep positions, and using supportive pillows.
Overall, mouth breathing while sleeping is not just a harmless habit but can indicate underlying health issues and lead to a range of complications, especially in the elderly. It is important to consult a doctor or sleep specialist to determine the root cause and implement effective treatments to improve breathing habits and overall health.
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Treatment options
Consulting a healthcare professional
If you or your child are sleeping with your mouth open, it is recommended that you consult a healthcare provider. They can evaluate and diagnose any physical problems that may be causing mouth breathing and recommend treatments or medication to resolve the problem.
Addressing airway health problems
Mouth breathing is often a symptom of poor airway health. Therefore, restoring airway health is the ultimate solution to mouth breathing. Airway health specialists can determine why patients are breathing through their mouths and devise an effective treatment plan.
Oral appliances
Oral appliances such as the DNA appliance can help reshape and widen the palate and airway, making nasal breathing easier.
CPAP and other PAP machines
Continuous Positive Airway Pressure (CPAP) machines and other Positive Airway Pressure (PAP) machines pressurize the airway during sleep, preventing the tongue and soft tissues in the throat from collapsing and blocking airflow. CPAP machines are often recommended for people with sleep apnea.
Tongue-tie treatment
If tissue connects the tongue to the floor of the mouth, it can force the mouth open. Tongue-tie treatment can help resolve this issue.
Orthodontics
Orthodontic treatments such as braces and invisible aligners can help reposition the jaw and teeth, shaping the airway for improved airflow.
Nasal sprays and decongestants
Nasal congestion due to allergies, respiratory infections, or sinus congestion can often lead to mouth breathing. Nasal sprays, decongestants, and allergy medication can help alleviate nasal congestion and improve breathing.
Adjusting sleep positions
Sleeping on your side or in an upright position can help open the airways and reduce mouth breathing. Supportive pillows, body position sensors with alarms, and other aids can assist individuals in maintaining optimal sleep positions.
Air filtration
For allergy sufferers, installing high-quality air filters in the bedroom can remove allergens and alleviate nasal congestion, reducing the need for mouth breathing.
Surgery
In some cases, surgery may be necessary to address the underlying causes of mouth breathing. For example, surgery may be recommended to remove enlarged tonsils, adenoids, or large nasal polyps that are blocking the airway.
Stress management
Stress and anxiety can contribute to mouth breathing by affecting breathing patterns. Practices such as yoga or meditation can help reduce stress and promote nasal breathing.
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Frequently asked questions
There are several reasons why older people may sleep with their mouths open, including:
- Nasal congestion due to sinus congestion or allergies.
- Age-related structural changes, such as a deviated septum or decreased blood circulation to the nasal lining.
- Conditions like sleep apnea, which causes the airways to collapse during sleep.
- Enlarged adenoids or tonsils, which can block the nasal airway.
Sleeping with an open mouth can have several negative consequences, including:
- Dry mouth, leading to a higher risk of cavities and other dental issues.
- Poor oral health, such as gum disease or mouth pain.
- Restless sleep and decreased sleep quality, resulting in daytime fatigue and decreased cognitive performance.
- Potential impact on overall physical health, including an increased risk of heart disease.
There are several strategies that older adults can use to prevent sleeping with their mouths open:
- Adjust sleep position: Sleeping on the side or in an upright position can help open the airways and reduce mouth breathing. Supportive pillows or body position sensors with alarms can assist in maintaining proper head and neck alignment.
- Nasal sprays or strips: These can help reduce nasal congestion and improve sleep quality.
- CPAP machines: Continuous Positive Airway Pressure (CPAP) machines deliver pressurised air to the nose and mouth to keep the airways open during sleep.
- Oral appliances: Devices such as the DNA appliance can help reshape and widen the palate and airway, making nasal breathing easier.
- Medical treatment: In some cases, underlying medical conditions such as sleep apnea or allergies may need to be addressed through medication or other treatments.
Older adults should seek help if mouth breathing is persistent and accompanied by other symptoms such as:
- Severe dry mouth, difficulty swallowing, mouth pain, or other signs of poor oral health.
- Daytime fatigue, difficulty concentrating, or decreased cognitive performance.
- Respiratory issues or frequent gasping for air during sleep.
- Other underlying health conditions, such as allergies or sleep apnea, that may be contributing to mouth breathing.















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