Baby girl bedding should never be larger or smaller than the standard dimensions because this exposes newborns and very young children to several dangers. It is important to use snug-fitted sheets on the mattress to avoid the sheets becoming tangled. A baby can unintentionally pull a blanket that is too large over his or her head, making it hard to breathe.

Comforters and other thick bedding should be avoided due to the suffocation risks they pose to newborns. Look carefully at the materials used to ensure that no toxic chemicals are included in the manufacturing of the contents. When purchasing the bedding for the nursery, the savvy parents-to-be want to ensure that everything that touches the baby is fully 100% made from hypoallergenic material.