Event professionals are operating under unprecedented pressure to deliver meaningful results with shrinking budgets, rising attendee expectations, and increasing duty-of-care responsibilities. Mental wellbeing has become a defining factor in event success; yet most organisations still treat it as an optional extra rather than a measurable strategic driver. This session introduces a practical framework for embedding mental wellbeing into the core of event design, leadership, and evaluation. Attendees will learn how to apply wellbeing-centred KPls that speak directly to organisational goals, improve attendee engagement, reduce staff burnout, and strengthen overall ROI. Drawing on cross-sector insights from higher education, the workplace, and global policy environments, this session provides event professionals with actionable tools they can implement immediately in any budget, region, or event format.