Your child’s cute sleeping habit could be a breathing warning sign

Many parents have noticed their child sleeping with their mouth open, a habit often brushed off as cute and quirky. While occasional mouth breathing due to a cold or allergies is harmless, persistent mouth breathing during sleep can sometimes be an early sign that a child isn’t breathing optimally, and may even indicate an underlying issue.

Normally, breathing through the nose filters and warms the air before it reaches the lungs. When the nasal passage is blocked for some reason, the airway becomes restricted, and many children start breathing through their mouth instead while they sleep. In many cases, parents don’t realise there is a problem because the child appears to be sleeping through the night.

But that appearance can be misleading. When a child’s breathing is restricted, sleep can become fragmented, preventing them from reaching the most restorative stages of rest. Nasal breathing also supports a healthy oxygen and carbon dioxide balance, and sleep-disordered breathing can affect cardiovascular health, growth and cognitive functioning if left untreated, according to the American Academy of Pediatrics.

Chronic mouth breathing has also been linked to changes in craniofacial growth and dental development, including a narrower upper jaw, misaligned or crowded teeth, and altered facial structure over time.

The best step for parents is to seek professional help, since a paediatrician can assess the root cause. Monitoring sleep quality, checking for snoring, keeping the bedroom free of allergens and encouraging good hydration can also support healthier breathing.

Image: Wikimedia Commons/by MIKI Yoshihito