Sleep Timing, Eating and Activity Measurement Study

Following a periods of time meant to stabilize their sleep patterns and to induce mild sleep restriction, participants will be randomly assigned to one of two sleep extension conditions, both of which are designed to allow recommended sleep duration. The Early Sleep Extension condition does so by keeping rise time the same as the sleep restriction period, but extending sleep by going to bed earlier. This produces a sleep extension that is aligned for Morning Larks and misaligned for Night Owls.

Following a periods of time meant to stabilize their sleep patterns and to induce mild sleep restriction, participants will be randomly assigned to one of two sleep extension conditions, both of which are designed to allow recommended sleep duration. The Early Sleep Extension condition does so by keeping bedtime the same as the sleep restriction period, but extending sleep by rising later. This produces a sleep extension that is misaligned for Morning Larks and aligned for Night Owls.