The term QUILT FILL can be broken DOWN into two crossword solutions: DOWN (4 letters) and BATT (4 letters). Quilt fill is a type of quilting material used to add warmth and insulation to quilts. It is usually made from polyester or cotton batting, which is why the solution for BATT is 4 letters. The solution for DOWN is also 4 letters because DOWN is a type of feather that is often used as a quilt fill. DOWN is known for its lightness and warmth, making it an ideal choice for quilting.