Study of the relationship between caffeine consumption and sleep patterns

Objectives: One of the stimulants that individuals use the most often in our everyday lives is caffeine, especially for people who want to be more awake and productive, because of its capacity to lessen weariness and sleepiness. Caffeine is used by almost 80% of people worldwide because it is a socially acceptable substance. This study aimed to identify the relationship between the amount of caffeine consumed by people aged 20–40 years and its effect on sleep duration. Materials and Methods: The randomized study was conducted on 150 males and females. The participants were divided into three groups. The first group included 50 individuals who consumed 1–3 cups of caffeinated beverages, the second group included 50 individuals who consumed more than 3 cups, and the third group included 50 individuals who did not consume any caffeinated beverages. Results: The results showed that increased caffeine consumption by people affects the duration of sleep during the night, as there is a noticeable decrease in the number of hours of sleep at night. Conclusion: Abstaining from caffeine is beneficial for improving sleep quality. Therefore, abstaining from caffeine is recommended in sleep hygiene recommendations for treating insomnia and improving sleep.