Doctor, when my child was 1 year old, she had chronic cough and it got better after 3 months. From that time, breathing difficulty and mouth breathing started. The pediatrician confirmed adenoid. Now she is 3 years 5 months old; the adenoid has shrunk and sinus is mild, but still she is not sleeping well at night. Pediatrician and ENT doctor said there is no problem in the nose or lungs. They say it may be sleep apnea. Please give tips on how to make my child sleep well.