|A view of the 'tower' at Khirbet Qumran|
Good question, and perhaps a classic case of 'imposition of categories' onto a 'text.' Anyone who has lived in a small house in India or Africa will know that you don't have, and you don't have to have, often because you just don't have the space, a separate something called 'dormitory.' You eat, you clear up space, you sleep. At home in Wadala we did not sleep in the kitchen, but almost everywhere else! I would imagine the members of the yahad did the same.