Interestingly, my son too was dealing with sleep apnea. We had to have his tonsils and adenoids removed. His case was odd b/c he never was sick, never had a sore throat. IT seems to be asymptomatic allergies. I know this year even w/out tonsils or adenoids, his eyes got red and he seemed tired and grumpy so I started giving him allergy meds and that helped a lot.