For those of you who haven't been on a military vessel and had the joy of sleeping on one, here is an interesting shot:



This is on the USS Iwo Jima. The clearance between bunks is 22"... a few of my fellow friends on DMAT CA-11 said that turning over at night meant whacking a shoulder during the night. Ouch. Guess the guys who sleep on these normally learn not to move at night.