The Welsh Ambulance Services NHS Trust (WAST) and Omda present the power of innovative emergency response modelling for improving staff welfare. Utilising Omda Readiness, WAST optimised critical operational variables like meal breaks, interruption rules, and end-of-shift practices, to enhance staff well-being while ensuring high-quality patient care. This collaborative effort led to a notable reduction in shift overruns, showcasing the effectiveness of simulation solutions in enhancing emergency service operations.