Walking into a musty bedroom is never a pleasant experience. Not only is the smell unpleasant, but it can also be a sign of underlying problems, such as mold or mildew growth. If you’re wondering why your bedroom smells musty, there are a few potential causes. One common cause of musty bedroom smell is poor ventilation. If your bedroom doesn’t have adequate airflow, moisture can build up and create a breeding ground for mold and mildew. This is especially true if your bedroom is located in a humid climate or if you have a lot of plants in the room. …