THE EFFECT OF SLEEP ON CONCENTRATION AMONG HIGH SCHOOL STUDENTS AT ALRIYADH.

Objectives:- The aim is to know sleep phases and its patterns, including average sleeping hours and day naps during weekdays and weekends, sleep quality and sleep type. And knowing the different factors, which affect sleep, it includes alerts intake, lights, stresses and exercise. Methods:- A cross sectional descriptive study was carried out in a high school, at AL Riyadh in April 2015. Ninety female students were interviewed using a specially constructed questionnaire. SPSS was used for data entry and analysis. Results:- Normal sleep hours during weekdays were the practice of 47.8% of the participants. Good to excellent quality of sleep prevailed in 87.8% of them. Of those who frequently took caffeinated drinks, 60% had normal sleeping duration compared to 23% of those who infrequently did so. The difference was statistically significant (p=0.0017). Students with good attendance had significantly better grades than those with poor attendance (p=0.0274). About 42% of those who were never/rarely sleepy during classes scored A, compared to about 24% of the girls who always/sometimes feel sleepy. The difference did not reach statistical significance. Conclusion:- In this study poor school achievement was associated with excessive daytime sleepiness and poor school attendance. Sleep/wake pattern in this study did not show relationship with academic performance. Contrary to many studies, consumption of caffeinated drinks was associated with sleep duration.