This research was conducted with the aim of providing a structural model of the effect of sleep disorders on learning problems with the mediating role of cognitive flexibility in children. This research was a descriptive-correlation study. The statistical population of the research included all primary school students (ages 9 to 12 years) in district 3 of Marand city in 2023. From this society, 300 students were selected by staged cluster sampling method. Data collection tools included Children's Sleep Habits Questionnaire (CSHQ), Colorado Learning Difficulties Questionnaire (CLDQ) and Wisconsin Card Sorting Test (WCST). Data analysis was done using Pearson correlation in spss version 26 and structural equation analysis in AMOS version 21. Data analysis showed that children's sleep disorders have a direct and positive effect on cognitive flexibility and learning problems, and cognitive flexibility also has a direct and positive effect on learning problems, which were statistically significant. Also, children's sleep disorders had a significant indirect effect on learning problems through cognitive flexibility in a positive way. These results mean the importance of maintaining and improving the quality of children's sleep to support the learning process and improve their cognitive performance. Therefore, paying attention to healthy sleeping habits and creating a suitable sleeping environment for children can be effective in increasing cognitive flexibility and reducing their learning problems.
