The impact of structured sleep schedules prior to an in-laboratory study: Individual differences in sleep and circadian timing.

ABSTRACT: INTRODUCTION:Many sleep and circadian studies require participants to adhere to structured sleep-wake schedules designed to stabilize sleep outcomes and circadian phase prior to in-laboratory testing. The effectiveness of this approach has not been rigorously evaluated, however. We therefore investigated the differences between participants' unstructured and structured sleep over a three-week interval. METHODS:Twenty-three healthy young adults completed three weeks of sleep monitoring, including one week of unstructured sleep and two weeks of structured sleep with consistent bed and wake times. Circadian phase was assessed via salivary dim light melatonin onset (DLMO) during both the unstructured and structured sleep episodes. RESULTS:Compared to their unstructured sleep schedule, particip

SUBMITTER: McMahon WR 

PROVIDER: S-EPMC7423117 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature