This study investigates whether sleep mediates the relationship between screen time and academic performance among high‑school and college‑aged students. Using a dataset of 50 self‑reported responses collected in December 2025, the analysis reveals a consistent pattern: students who spend more time on screens tend to sleep less, and those who sleep less generally report lower GPAs. These findings suggest that sleep functions as a partial mediator, helping explain how screen time indirectly influences academic outcomes.