This study aims to evaluate the effects of laughter yoga and sleep hygiene training on premenstrual syndrome (PMS) symptoms, perceived stress levels, and sleep quality among nursing students.Premenstrual syndrome is a common health issue characterized by physical symptoms as well as emotional fluctuations, anxiety, depressive mood, and behavioral changes, which can negatively impact quality of life. Additionally, it is known that stress is a significant risk factor that exacerbates PMS symptoms, and that healthy lifestyle behaviors may be effective in alleviating these symptoms. In this context, it has been reported that yoga and similar relaxation-based practices support mental well-being by reducing stress levels.The intervention consists of laughter yoga and sleep hygiene education, implemented as non-pharmacological methods over a 4-week period.Participants were assessed at baseline, immediately following the intervention, and during the 1-month follow-up period. The primary objective is to observe improved sleep quality alongside reductions in PMS symptoms and stress levels in participants as a result of the intervention. The findings are expected to contribute to the effectiveness of non-pharmacological, low-cost, and feasible approaches in managing PMS symptoms, as well as addressing stress and sleep quality.