This study investigated the predictive effects of nomophobia, netlessphobia, and sleepiness on fatigue. The sample consisted of 907 students from a public university. Data were collected using Demographical Information Form, the Firat Netlessphobia Scale, the Firat Nomophobia Scale, the Epworth Sleepiness Scale, and the Chalder Fatigue Scale. Therefore, structural equation modeling was used to identify factors affecting fatigue. The structural equation modeling was performed using the Analysis of Moment Structures. The results showed that nomophobia, netlessphobia, and sleepiness predicted fatigue, explaining 31% of the total variance. Nomophobia and netlessphobia predicted sleepiness, with nomophobia and netlessphobia explaining 18% and 30% of the total variance, respectively. Keywords: Fatigue, nomophobia, netlessphobia, sleepiness, student