Hello, we are newbies to the travel trailer life. We purchased a 2011 Crossroads Zinger. First time using it we had guests in the lower bunk which is a full. The problem is there is a cabinet in the corner and it hand lower than the upper bunk causing anyone in the lower bunk that moves around to hit their head if they forget its there. I have hit my head numerous times then trying to make the bed. Our guests hit their heads a few times as well. Any suggstions on what to do?