Why Does My Child Sleep With Their Mouth Open?
If you’ve noticed your child sleeping with their mouth open, you may be wondering whether it’s simply a habit or a sign that something else is going on. Occasional mouth-open sleeping can happen, especially during a cold or when a child is congested. But if your child regularly sleeps with their mouth open, it’s worth paying attention to how they breathe, sleep, and function during the day.
One common reason children sleep with their mouths open is difficulty breathing comfortably through the nose. Nasal congestion from allergies, frequent colds, enlarged tonsils or adenoids, or other airway-related factors can make nasal breathing more difficult. Over time, a child may develop a pattern of breathing through their mouth, even when they aren't actively congested. Mouth-open sleeping can also occur alongside other signs, such as snoring, restless sleep, dry lips or mouth, drooling, or waking with a dry mouth.
From a myofunctional perspective, we also pay attention to what the lips, tongue, and jaw are doing at rest. Ideally, the lips are comfortably closed, nasal breathing is established, and the tongue has an appropriate resting position within the mouth. If a child consistently rests with their mouth open or has difficulty maintaining a comfortable oral rest posture, an evaluation can help determine what may be contributing to that pattern. Myofunctional therapy may be one part of a child's care when appropriate, but it is important to address underlying nasal or airway concerns as well.
If your child regularly sleeps with their mouth open—particularly if you also notice snoring, pauses or changes in breathing, restless sleep, frequent waking, or daytime concerns—it’s a good idea to bring it up with your child's pediatrician or another appropriate healthcare provider. Depending on what is found, your child may benefit from a team approach involving professionals such as an ENT, dentist or orthodontist, sleep specialist, and myofunctional therapist. The goal isn't simply to teach a child to keep their mouth closed; it's to understand why their mouth is open and support healthy, comfortable breathing and oral function. More on mouth breathing concerns and the benefits of nasal breathing here
If you're in Ogden, or the surrounding Northern Utah area and have questions about your child's mouth breathing, tongue posture, or oral function, you're welcome to reach out to our practice or schedule a comprehensive evaluation to determine if myofunctional therapy may be beneficial.
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