I was thinking the same thing, Pam!
This is a great idea, especially when hung over an oft-unused door in the winter. I'm glad you came up with it, SemiSweet.
The wall at the head of my bed is an outer wall in the older re-muddled part of this old cottage and it's cold as the underside of a snake's belly in winter. I placed home insulation foam boards there, 7' x 7', and covered that with a quilt that happened to fit it exactly. Two purposes served!
Jan in VA