Thunder Run Horses Bed in a Bag Set features Horses running wild on the range. This horse themed bedding collection is a must for the true horse lover! Wild Horses bed in a bag set is available in king, queen, full and twin sizes. The Wild Horses comforter can be completed with drapes and decorative pillows. The comforters and sheets are 55% / 45% polyester / cotton blend. The comforter has polyester fiber fill and is machine washable.