The Room Night-Based Attrition Clause protects event planners from hefty penalties when room usage falls short of expectations. By linking damages to actual room nights, this clause ensures planners only pay for unsold rooms, with added protections like credit for resold rooms and clear timelines for payment. It includes provisions for occupancy thresholds, pre/post event nights, and emergency exceptions, making it a crucial tool for planners navigating fluctuating attendance or travel disruptions.