This research examines how the Internet of Things (IoT), atmosphere, and customer experience collectively shape customer satisfaction in smart hotels. A quantitative design was employed, integrating a survey approach and path analysis to explore relationships among the variables. Data were obtained from 210 respondents who utilize smart hotel services in Bekasi City through an online questionnaire. The findings highlight that the integration of IoT substantially enhances service efficiency and personalized guest interactions. Furthermore, a well-curated hotel environment, including design, lighting, and background music, plays a pivotal role in determining customer satisfaction. An improved customer experience, facilitated by digital interactions and automated features, also emerges as a key factor in boosting overall satisfaction. Thus, smart hotels that maximize IoT usage, cultivate a comfortable atmosphere, and enhance customer experience are more likely to elevate customer satisfaction. These outcomes provide strategic insights for the hospitality sector in developing technology-driven service strategies to remain competitive.