The Alpha Baby 4 Piece Baby Crib Bedding Set includes comforter, dust ruffle, fitted sheet and diaper stacker. The bumper is sold separately. The comforter measures 35 inches x 44 inches. The dust ruffle has a 14.5 inch drop, and the fitted sheet is designed to fit a standard size 28 inch x 52 inch crib mattress. The diaper stacker is 20.5 inches x 11.5 inches, and is 8 inches deep. It hangs from ties in the top corners. The set is made of 80% polyester - 20% cotton, and 100% polyester fabrics. The dust ruffle platform is 100% olefin. Filling is 100% polyester fiber. Fabric content is exclusive of decoration. Care instructions: machine wash cold with like colors in gentle cycle, do NOT bleach, tumble dry low, and iron on lowest setting as needed.