My 2 year old frequently sleeps with mouth open posture since 3 months now. If he turns to side, mouth closes. no snoring He had cold earlier since almost 3 months on and off. since past 2 weeks no cold still this habit is there. Even if I close his mouth in sleep, he ends up opening it in sleep. He is breastfeeding baby . Ent doc told to put saline spray which we are putting but still is persistent. Any peadtric dentist /myofunctional dentist we need to consult ? My elder son had similar issue but including snoring and now we know because of enlarged adenoids and tonsils.