2.5 yr old doesn't snore unless he's on his stomach. If he's on his stomach he sounds like a grown man snoring. How come?

Snoring child. It is a mechanical problem with your child's airway. Go to your local University Medical Center and get an appointment with the Pediatric Ear, Nose, Throat maven. He or she will look at your child's airway with a fiber optic scope and explain things in great detail. You may have to go to Calgary Children's or Chicago or the coasts.