Hello all...I need some advice because I am at a loss. My 4 year old has a heavy rattle sound in her chest when she is laying down at night. The rattle is there while breathing in, not out. She doesn't have a cold or any other symptoms. She doesn't seem bothered by it either. This has been going on for a while but she's a very healthy child since birth. I understand that it might be congestion but chronic? Any advice or suggestions will help. I am making an appointment for her to see her GP next week.