We love our bunkhouse. We have two double size bunks in the corner as you've seen in some layouts. The two boys sleep on top ages 10 & 12 and our girl age 9 sleeps on the bottom (her "room"). My wife and I sleep in the RV queen at the front of the TT. My older boy is now starting to like sleeping on the jack knife sofa and we are all fine with this. I can no longer watch TV late due to my boy sleeping in the sofa, but I added one in our bedroom so I can watch if I want to.
Everyone has thier own space if needed, nice if the weather is bad...