Star Wars the Clone Wars 4pc Toddler Bed Set DOES NOT FIT A TWIN BED, fits a crib/toddler bed mattress size 28" x 52". Toddler Comforter: 42" x 58", Fitted sheet: 28" x 52", Flat sheet: 45" x 58", Pillow case: 20" x 30" Material: 100 percent cotton . Care: Machine wash cold; tumble dry low