While it is technically possible to use black fiberglass tissue to create a bedspread or blanket, it is not recommended. Fiberglass is a type of plastic material known for its strength and insulation properties, but it is not designed for comfort or direct contact with the skin. It can be rough and may cause skin irritation. Traditional bedding materials like cotton, wool, or synthetic fibers are softer, more comfortable, and better suited for use in bedspreads and blankets.