How do the men react to the sisters’ praying in the Catholic infirmary?

Paul and Kropp share a room in a Catholic Hospital. Though the hospitals are known for their good treatment and food, Paul and Kropp are not examined because the hospital is so crowded. In the morning, the sisters' prayers in the hallway wake them through the open door. They patients yell at them to close the door, and only when Paul throws a bottle into the hallway do they.