Jack and Jill bathroom house plans and ideal for families with children. They help to save space in the floor plan while providing a private vanity for each bedroom. A Jack and Jill bathroom can be used by both secondary bedrooms. It typically has two doors connecting either to the two bedrooms or to the hallway and one of the bedrooms. The Jack and Jill bathroom often features two sinks and a separate toilet area, so the home's occupants can have some privacy while sharing a bathroom.