Blankets are a very big deal.  A blanket should not only be period correct but also keep you warm.  Some people tend to want to use a colorful coverlet.  The problem with coverlets are simply most are not heavy enough to keep you warm in the field. They may be great blankets for summer use, but you will freeze during spring, fall, and winter events. I highly suggest getting a correct Federal issue blanket (seen far left in photo above). A good blanket is worth it’s weight in gold in the field! 

 Co “D” 2nd MD INF C.S.A. 2014