Who will stay up all night to make sure the wedding party preparations are complete?

Typically, it's the wedding planner or a close family member, such as the bride's mother or a sibling, who stays up all night to ensure the wedding party preparations are complete. They handle last-minute details, check that decorations are in place, and coordinate with vendors. Friends and other family members might also pitch in to help with these tasks, demonstrating their support and commitment to making the day special.