ASSOCIATION BETWEEN AMOUNT OF WATER INTAKE AND QUALITY OF SLEEP IN ADULTS - JEDDAH, SAUDI ARABIA.

Background: Water is one of the main components that our body is made of. Dehydration results when there is no enough water in the body to carry out its normal functions. Objectives: This study was carried out to determine the association between the amount of water intake per day and quality of sleep among adults in Jeddah, Saudi Arabia. Methods: A brief questionnaire that assessed the amount of water intake per day in adults and Pittsburgh Sleep Quality Index (PSQI) were administered via direct communication with 278 participants of Jeddah city, Saudi Arabia. Results: The daily intake of water of the respondents was < 1000 ml in 31.7%, 1000-1999 ml in 29.9%, 2000-2999 ml in 23%, and ? 3000 ml in 15.5%. Half of them practiced exercise; among them 70.5% exercised for 4 hours or less weekly, 25.2% had exercise for 5 to 10 hours per week, and only 4.3% for more than 10 hours weekly. There were no significant differences in global PSQI as regards gender (p = 0.889), night work (p = 0.141), caffeine intake (p = 0.154), caffeine cups/day (p = 0.085), and hours of exercise/week (p = 0.345). Conclusion: It appears that the quality of sleep improves with increased water intake per day. The quality of sleep was not significantly affected by gender, night work, caffeine intake and amount, and hours of exercise per week. The general public should be educated about the benefits of adequate daily water intake, particularly those who suffer from sleep disturbances. Keywords: sleep quality; water; insomnia; alertness.