Making the world better, one answer at a time. The word foil in drama means a character or scene that is set up as a contrast to another so that each will stand out vividly.. Hope that helped.
Typically, a comforter is a thick, quilted, fluffy blanket that is used to keep you warm. It is usually filled with synthetic fiber filler which is quilted or stitched to secure the filling and keep it evenly distributed. Unlike a duvet, the comforter only forms one piece of all of your bed linens.
Comforters are thick, filled blankets that usually have a decorative design printed on them directly. They are meant to be placed over bed linens. Duvets tend to be plain white and more thickly filled. They are intended to either replace a regular comforter altogether or to be an extra cover on top of a regular comforter. Removable and washable duvet covers can be purchased to add decoration to plain duvets and protect them from dirt.