Considerable research confirms the relationship between school start times, sleep deprivation, and student performance, truancy, and absenteeism, as well as depression, mood swings and impulse control. Mounting evidence about the biology of adolescent sleep, and about the impact of later start times, shows that starting school early not only undermines academic achievement but endangers health and safety. Data from later starting schools such as Nathan Hale High School corroborate national findings in demonstrating improvements in tardiness, absenteeism and performance. Saving money on transportation costs does not outweigh the damage done to the physiological and psychological functioning of middle and high school students. To improve the learning ability of students we call on the Seattle School Board and Seattle Public School District to schedule transportation and start times so that no middle or high school in our district start earlier than 8:30 am.