There are 3 main berthing/sleeping areas on station, A1, A4, and B1. I lived in A4 for 2-3 weeks then moved to A1 as A4 is closed for the winter. During the summer, there is some housing in summer camp (top of the photo above) where they can put quite a few people.
The berthings are simple. They each have an upstairs and downstairs. When you enter, you go to the left or right hallway. Each hall way has 8 exterior rooms and 4 interior rooms. The interior rooms from each hallway overlap like if you press your fingers together from the opposite hands. All the doors are so close, but you can often still hear them opening and closing. It can be tough for the night workers.
When I wintered at McMurdo, I took the time to really dress up and change my room around. This time, I did not do that at all. I was too tired from not sleeping and focused on learning my new job. The one big changed that I made was I took out the two 3-drawer dressers from under the bed and lowered my bed. I did not want a step stool to get in and out every day. It seemed like a recipe to slip and fall when I was tired.