We did the same thing at Fort Knox in '69. We slept on top of our blanket...made it easier to get our rack ready for inspection in the morning.
We were 19...and didn't need a 219 year old educational institution to figure it out.
Don't know what time of year you were there or which barracks but we were put up in the old two story wooden buildings in early April which were cold so sleeping on top of the blanket wasn't an option........
Making the bunk up in the morning wasn't a chore anyway......