This document explores the critical role of sleep in the lives of teenagers, focusing on how much sleep they need for optimal health and well-being. It discusses Rhea, a 16-year-old who struggles with sleep deprivation and its effects on her academic performance and social life. Research from the CDC highlights that teens require 8 to 10 hours of sleep, yet 80% do not meet this requirement, leading to issues like stress and difficulties in concentrating. The document also delves into historical perspectives on sleep, the impact of school start times on sleep habits, and suggestions for improving sleep, such as advocating for later school schedules. It emphasizes the importance of sleep for mental health, cognitive function, and overall teen development.