I Am A 58 Year Old Woman. Every Single Night

I am a 58 year old woman. Every single night when I try to sleep, my nose is stuffy or completely stopped up. I cough up yucky thick mucus don't sleep much at all. My exhaustion level is climbing until I can hardly stay awake at all. I feel like my lungs are full mucus and need moisture and oxygen. I am looking for some natural remedies to break up the congestion and get the mucus out.