Cora
Have you looked at his pillow latly,my son was coughing up large amounts of flem each night to the point of vomiting. When the doctor couldn't find anything wrong I did some reseach myself and found out pillows are the wrost area for allergies .Just be sure to wash his pillow in very hot water weekly and he may sleep better.Dont put any moisture into his room for this will be a breeding zone for all kinds of nasty germs.If you would like to talk more or just need some support I'd like to help just email me !