Hello Rickweiser14, and all "medics" on this forum,
I think that this sleeping bag evacuation is not WW2 era. Perhaps Korea or Viet Nam conflicts.
I'am sorry for the poor copy from "Quarter master supply catalog 3-4", I do not have this catalog!
Number stock and others détails without laundry advice, are not similars with your item.
Beautiful material, uncommon !! Difficult to find about WW2 era.
With my friendly salute.