Objectives High school start times are a key contributor to insufficient sleep. This study
investigated associations of high school start times with bedtime, wake time, and time in bed …

ABSTRACT BACKGROUND Although adolescents generally get less than the
recommended 9 hours of sleep per night, research and effort to delay school start times …

Objective To determine whether simultaneous school start time changes (delay for some
schools; advance for others) impact adolescents' sleep. Design Quasi-experimental study …

With the onset of adolescence, teenagers require 9.2 hr of sleep and experience a delay in
the timing of sleep. In the “real world” with early school start times, however, they report less …

Abstract Study Objectives High school start times (SSTs) directly impact adolescents' sleep
timing and duration. This study investigated the associations between SSTs and …

Objectives. We estimated associations between school start time and adolescent weeknight
bedtime, weeknight sleep duration, and weekend compensatory sleep and assessed …

Importance Sleep is a resource that has been associated with health and well-being;
however, sleep insufficiency is common among adolescents. Objective To examine how …

Objective We tested the effect of later school start time (LSST) by 1 hour during 1 week on
sleep, sleepiness, and mood profile using within-subject design. Design A within-subject 3 …

Background To date, no longitudinal population-based studies of school start times have
been conducted within Canada. School schedule changes provided an opportunity to …

Homeschooled students provide a naturalistic comparison group for later/flexible school
start times. This study compared sleep patterns and sleep hygiene for homeschooled …