In the bustling waters of Singapore, seafarers on bunker tankers endure relentless fatigue, exposing challenges in the shipping industry. This research delves into fatigue, exploring its facets from ship design to crew well-being. Sleep deprivation resonates like a siren, shaping their fatigue amidst crashing waves and quiet nights. Through a literature review and empowered by Bayesian networks and Python software, the study navigates data collection, seeking insights. The battle proves tough, with physical and psychological stress and shore-based management factors as adversaries. Nevertheless, hope persists; means to protect these courageous souls are within reach. Armed with newfound knowledge, the research sails toward a brighter horizon, easing their fatigue and offering solace in the tempestuous seas of Singapore’s shipping industry.