What is "bunkrooms"

Usage examples of "bunkrooms".

At mealtime I could not even look at food, but since the bunkrooms were so cold, I came over to the dining room anyway, went through the food line, and gave my food to some boys.

But under normal conditions the bunkrooms were used almost solely for sleeping, blastoff and landing.

Three Chimneys cannot properly be called more than a hostelry, not with only two bunkrooms and a single common room for eating.