For many fathers, paternity leave is a precious opportunity to bond with a newborn and support their family during a life-changing transition. But when a baby requires care in a Neonatal Intensive Care Unit (NICU), that leave can quickly disappear before the child ever comes home. A growing movement known as NICU leave is changing that reality by giving parents additional time away from work while their infant receives critical medical care. In some cases, this new benefit can effectively double paternity leave, allowing fathers to be present during one of the most challenging periods their family may ever face. As awareness grows, more families are paying close attention to how NICU leave could reshape parental support in the United States.