Adolescence is a period in our lives when we change significantly, both physically and mentally. It marks the transition from childhood to adulthood and often shapes our character, defining who we are. We go through countless changes during this time (puberty), and these changes allow us to grow, arguably faster than we ever have or will. Similarly, sleep patterns also change throughout this period. These changes are caused by biological shifts in our body as well as our new lifestyles. As a result, it is very important to know about the specifics of adolescent sleep in order to understand the teen's body, habits, and health.