Coffee consumption patterns and sleep quality among Saudi Youth: A cross-sectional study

Area of Science:

• Sleep Science
• Nutritional Psychiatry
• Public Health

Background:

• Coffee consumption is prevalent among youth globally.
• Understanding coffee's impact on sleep is crucial for public health.
• Saudi youth represent a unique demographic for studying these associations.

Purpose of the Study:

• To investigate coffee consumption patterns in Saudi youth.
• To assess the relationship between coffee intake and sleep quality indicators.
• To identify key predictors of poor sleep outcomes in this population.

Main Methods:

• A cross-sectional online survey was administered to 1458 Saudi youth (16-30 years).
• The Pittsburgh Sleep Quality Index (PSQI) was adapted for data collection.
• Statistical analyses included Chi-square tests and binary logistic regression.

Main Results:

• Evening/night-time coffee consumption strongly predicted sleeping after midnight (OR=3.04).
• Coffee timing showed significant associations with bedtime, sleep duration, and daytime sleepiness.
• Pre-bedtime cessation timing correlated with bedtime patterns and nighttime awakenings.

Conclusions:

• The timing of coffee consumption, particularly in the evening, is a significant risk factor for delayed sleep.
• Sleep quality in Saudi youth is more influenced by coffee intake timing than by coffee type.
• Interventions focusing on strategic timing of coffee consumption may enhance sleep health more effectively.