Research in the area of sleep problems and children is a relatively new field. There is even less research when it comes to examining the issue of sleep problems and the effect it has on academic performance. The main aim of the present study is to discuss the relationship between sleep duration, mathematical performance and its predictors. A sample 150 secondary school girls were tested on (1) the Witkin’s cognitive style (Group Embedded Figure Test) (2) Digit Span Backward Test (3) Mathematics Attention Test (4) Modified Fennema-Sherman Attitude Scales (5)Mathematics Anxiety Rating Scale and math exams. Results obtained indicate that students with 7-8 hours of sleep duration had better performance in mathematical activity and math score. In this study in term of sleep duration no significant difference found for predictive factors of mathematical performance. But some non-significant differences between predictive factors of mathematical performance and sleep duration were found.

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