Breathe through your nose during the day
Keep your lips gently closed
Practice nasal breathing exercises
Treat nasal congestion
Use saline nasal rinses
Manage allergies
Stay hydrated
Avoid smoking and irritants
Improve sleep posture
Use a humidifier if air is dry
Seek treatment for a deviated septum
Address enlarged tonsils or adenoids
See a dentist or ENT specialist
Use mouth tape only if approved by a healthcare professional