Thank you for your query.
Tongue is highly vascular and it is not unusual to see red papillae on it which are normal. However if you see red patches then that needs to be examined to rule out an ulcer formation which can hurt when your son eats. Geographic tongue
with wide smooth areas are know are of not any significance.
Regarding your daughter I suggest that you get her examined to rule out any wheezing
which may be manifesting as her complaints of difficulty in breathing at bed time. Does she have nocturnal cough? If nocturnal cough and wheezing is present then appropriate medication should give your daughter relief.
I hope I have answered your query to your satisfaction.
Wishing your son and daughter all the best.