A newborn baby wears a stocking cap and sleeps in a big Christmas stocking in the Mother-Baby Unit of St. Luke's Hospital in Chesterfield, Missouri on December 25, 2018. The newborns at the hospital welcomed their first Christmas in the new suits. [Photo: UPI Photo via Newscom/BIll Greenblatt]

A newborn baby wears a stocking cap and sleeps in a big Christmas stocking in the Mother-Baby Unit of St. Luke's Hospital in Chesterfield, Missouri on December 25, 2018. The newborns at the hospital welcomed their first Christmas in the new suits. [Photo: UPI Photo via Newscom/BIll Greenblatt]

A nurse takes care of a newborn baby inside a Christmas stocking and wearing a stocking cap in the Mother-Baby Unit of St. Luke's Hospital in Chesterfield, Missouri on December 25, 2018. The newborn babies welcomed their first Christmas in the new suits. [Photo: UPI Photo via Newscom/BIll Greenblatt]

A nurse takes care of a newborn baby inside a Christmas stocking and wearing a stocking cap in the Mother-Baby Unit of St. Luke's Hospital in Chesterfield, Missouri on December 25, 2018. The newborn babies welcomed their first Christmas in the new suits. [Photo: UPI Photo via Newscom/BIll Greenblatt]