Why Is My Baby Breathing Through Mouth While Sleeping?
Disclaimer: This article for baby breathing through mouth while sleeping is for general information purposes only and does not constitute medical advice or should ever be seen a such. If you have concerns about your child’s health, please consult a healthcare professional.
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As a parent, noticing unusual sleep habits in your babies can be unsettling. I remember the first time I saw my daughter Eliza breathing through her mouth while she had a cold; it made me wonder if something more serious was happening, and we did the right thing and contacted the GP straight away to ensure all was well and took her in for a check-up immediately. If you ever have any concerns as new parents, the best thing you can do, especially with a baby, is contact your healthcare provider immediately or call 999 in an emergency as your first step or 111 for non urgent.
Did you know that most babies naturally breathe through their noses, which is crucial for proper feeding and oxygen intake? One common question parents have is, “Why is my baby breathing through mouth while sleeping?” In this article, we’ll explore possible causes of mouth breathing in babies, what it might mean, and when it’s essential to seek advice from a healthcare provider.
What Is Mouth Breathing?
Mouth breathing occurs when someone breathes through their mouth instead of their nose i.e open mouth. For babies, nasal breathing is more common because their noses are designed to filter, humidify, and warm the air. This natural process also helps them feed and breathe simultaneously. Nasal breathing is especially critical in early development to support proper sleep and feeding habits, as it ensures optimal oxygen levels and aids in healthy growth. Chronic mouth breathing, however, could lead to long-term concerns such as oral health problems or changes in facial structure. If your baby consistently breathes through their mouth during sleep, it’s worth paying attention to possible underlying issues in their upper airway or nasal passages.
Why Do Babies Breathe Through Their Mouths?
There are a variety of reasons why your baby might breathe through their mouth while sleeping:
Nasal Congestion:
A stuffy nose due to a cold, allergies, or exposure to irritants like dust or smoke might force your baby to breathe through their mouth. For example, when Eliza had a cold last winter, her little nose was so blocked that she started breathing through her mouth during sleep. We used a Vicks humidifier in her room to help ease her congestion, which made a noticeable difference in her breathing. Saline drops, or a bulb syringe can help clear your baby’s nostrils. For tips on managing nasal congestion in young children, speak with your local pharmacist, healthcare advisor or doctor.
Anatomical Issues:
A deviated septum or enlarged tonsils and adenoids can obstruct the nasal airway, leading to mouth breathing. Habitual Breathing: Sometimes, mouth breathing becomes a habit after nasal congestion, even if the nose is no longer blocked. This happened briefly with Kimi after he recovered from a bout of seasonal allergies. Other Medical Conditions: Sometimes, mouth breathing could signal underlying health conditions such as obstructive sleep apnea or respiratory infections.
We found the Vicks humidifier especially useful for Kimi and Eliza when they had colds. Its cool mist helped maintain the room’s humidity, which eased their nasal congestion and promoted better breathing while they slept. Using the humidifier alongside saline drops and gentle suction with a bulb syringe created a more comfortable environment for them to rest and recover. These minor adjustments significantly improved their nighttime breathing and allowed us to manage their colds more effectively.
Is Mouth Breathing in Babies a Problem?
Occasional mouth breathing due to a stuffy nose is typically not a cause for concern, but always check with a medical professional if you are concerned. Chronic mouth breathing could indicate an underlying medical condition that may need addressing. Prolonged mouth breathing might lead to Dry Mouth. Reduced saliva production can increase the risk of tooth decay and gum disease. Interrupted or
Poor-Quality Sleep:
This can lead to daytime sleepiness and behavioural problems in younger children. Developmental Concerns: Persistent mouth breathing may affect oral health, facial structure, and jaw alignment over time, potentially leading to an open bite or other dental problems. These long-term health problems emphasize the importance of addressing chronic mouth breathing early. If you have any concerns, it is essential to consult a healthcare provider.
What Can Parents Do?
While mouth breathing might seem harmless, monitoring your baby and addressing any persistent issues is essential. Here are some tips:
Keep Their Environment Clean:
Clean the air in your baby’s room to minimize exposure to allergens and irritants. A cool mist humidifier, like the Vicks model we used, can help maintain comfortable humidity, especially during winter. This helped Eliza breathe better and created a soothing sleep environment.
Use Saline Drops or a Bulb Syringe:
These can help clear your baby’s nostrils if they have a stuffy nose. Ensuring your baby’s nose is clear can promote normal breathing. Provide Comfort: Elevate your baby’s head during sleep by adjusting their mattress angle (using safe sleep guidelines) to reduce nasal congestion and improve airflow.
Observing Breathing Patterns:
With a baby breathing through mouth while sleeping, watch for signs like loud snoring, restless sleep, or pauses in breathing. These could indicate airway obstruction or sleep disorders. Consult a Healthcare Provider: If your baby exhibits persistent mouth breathing, discuss potential treatment options with your child’s doctor to address underlying causes like nasal obstructions.
What Can Chronic Mouth Breathing Lead To in Older Children?
If unresolved, mouth breathing during infancy may continue into toddlerhood and beyond. This can lead to several developmental challenges:
Dental Issues:
Prolonged mouth breathing often results in dry mouth, which reduces saliva production and creates an ideal environment for bacteria, potentially causing cavities and gum disease.
Facial Structure Changes:
In time, mouth breathing could change the growth of facial bones, resulting in a longer face, narrow palate, or misaligned teeth. Orthodontists often note these signs in children with chronic mouth breathing history. Speech and Learning Concerns: Babies and toddlers who experience disrupted sleep due to mouth breathing may show signs of delayed speech development or difficulty concentrating as they grow.
When to Seek Medical Advice
While occasional mouth breathing might not cause alarm, consistent or chronic mouth breathing should prompt a visit to your healthcare provider. They can assess your baby for Enlarged tonsils or adenoids, structural issues in the nasal passages, such as a deviated septum, and signs of obstructive sleep apnea or other sleep-related conditions. For example, if your baby frequently snores, has difficulty feeding, or exhibits signs of daytime sleepiness, these could indicate an issue requiring medical assistance. Something like persistent congestion that doesn’t improve requires medical attention.
Final Thoughts
Parents always want to ensure our babies are comfortable, happy, and healthy. If you notice your baby breathing through its mouth while sleeping, observe its habits, consider the possible causes, and seek professional advice.
Chronic mouth breathing in young babies can lead to long-term concerns, so it’s always a good idea to seek advice from a healthcare provider to ensure your child’s health and development are on track. We hope you enjoyed our article on baby breathing through mouth while sleeping.


Disclaimer: This article about Baby Breathing Through Mouth While Sleeping is for general non-medical informational purposes only and does not constitute medical advice. If you have concerns about your child’s health, please consult a healthcare professional.