The standard bedding set usually contains a comforter, sheet, and crib bumpers and skirt.Remember baby's soft & new skin will have to touch the baby crib bedding set, you want the sheets, duvet, and bumpers are made of a soft 100% cotton or silky luxurious 100% Egyptian cotton. Cotton is soft and natural and has several bonuses: with the soft comfort and easy cleaning, it is durable and easy to share beds.Generally the 4 sets include crib bumper, a crib quilt, a crib sheet, and a crib skirt .