First, when you are drafted or enlist, you have to sign away(!!??!!) all your right under the Constitution and the Bill of Rights as a 5th generation Californian and American.
Yikes !!!
Second, you are/were given 2 sheets and one blanket.Period. It you wanted another blanket, the usual stupid response was, "sounds like a personal problem", meaning the U.S. military couldn't care less. So say you used your own sleeping bag or down comforter in those cold drafty noisy ships, then that would be "non-govt issue and not allowed". The Navy ,still to this day, operates without any appreciation for the value to heath and safety of a continuous 8 hours of sleep !! Stupid bastards. So every macho ship at sea under the American flag is full of falling asleep at the trigger/jet/helm sailors and pilots and crew, just because the military is too short-sighted macho stupid.