Effects of red light on sleep inertia

Mariana G Figueiro,1 Levent Sahin,1 Charles Roohan,1 Michael Kalsher,2 Barbara Plitnick,1 Mark S Rea11Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; 2Department of Cognitive Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, USAIntroduction: Sleep inertia,...

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Autores principales:	Figueiro MG, Sahin L, Roohan C, Kalsher M, Plitnick B, Rea MS
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2019
Materias:	Sleep inertia cognitive performance alertness red light closed eyelids Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
Acceso en línea:	https://doaj.org/article/c002e3afdb04436fa8b51b877724eb64
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spelling	oai:doaj.org-article:c002e3afdb04436fa8b51b877724eb642021-12-02T08:58:34ZEffects of red light on sleep inertia1179-1608https://doaj.org/article/c002e3afdb04436fa8b51b877724eb642019-05-01T00:00:00Zhttps://www.dovepress.com/effects-of-red-light-on-sleep-inertia-peer-reviewed-article-NSShttps://doaj.org/toc/1179-1608Mariana G Figueiro,1 Levent Sahin,1 Charles Roohan,1 Michael Kalsher,2 Barbara Plitnick,1 Mark S Rea11Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; 2Department of Cognitive Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, USAIntroduction: Sleep inertia, broadly defined as decrements in performance and lowering of alertness following waking, lasts for durations ranging between 1 min and 3 hrs. This study investigated whether, compared to a dim light condition (the control), exposure to long-wavelength (red) light delivered to closed eyelids during sleep (red light mask) and to eyes open upon waking (red light goggles) reduced sleep inertia.Methods: Thirty participants (18 females, 12 males; mean age=30.4 years [SD 13.7]) completed this crossover, within-subjects, counterbalanced design study. Self-reported measures of sleepiness and objective measures of auditory performance and cortisol levels were collected on 3 Friday nights over the course of 3 consecutive weeks.Results: Performance improved significantly during the 30-min data collection period in all experimental conditions. Subjective sleepiness also decreased significantly with time awake in all experimental conditions. As hypothesized, performance of some tasks was significantly better in the red light mask condition than in the dim light condition. Performance scores in the red light goggles condition improved significantly after a few minutes of wearing the light goggles.Discussion: The results show that saturated red light delivered through closed eyelids at levels that do not suppress melatonin can be used to mitigate sleep inertia upon waking.Keywords: sleep inertia, cognitive performance, alertness, red light, closed eyelidsFigueiro MGSahin LRoohan CKalsher MPlitnick BRea MSDove Medical PressarticleSleep inertiacognitive performancealertnessred lightclosed eyelidsPsychiatryRC435-571Neurophysiology and neuropsychologyQP351-495ENNature and Science of Sleep, Vol Volume 11, Pp 45-57 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sleep inertia cognitive performance alertness red light closed eyelids Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495
spellingShingle	Sleep inertia cognitive performance alertness red light closed eyelids Psychiatry RC435-571 Neurophysiology and neuropsychology QP351-495 Figueiro MG Sahin L Roohan C Kalsher M Plitnick B Rea MS Effects of red light on sleep inertia
description	Mariana G Figueiro,1 Levent Sahin,1 Charles Roohan,1 Michael Kalsher,2 Barbara Plitnick,1 Mark S Rea11Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; 2Department of Cognitive Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, USAIntroduction: Sleep inertia, broadly defined as decrements in performance and lowering of alertness following waking, lasts for durations ranging between 1 min and 3 hrs. This study investigated whether, compared to a dim light condition (the control), exposure to long-wavelength (red) light delivered to closed eyelids during sleep (red light mask) and to eyes open upon waking (red light goggles) reduced sleep inertia.Methods: Thirty participants (18 females, 12 males; mean age=30.4 years [SD 13.7]) completed this crossover, within-subjects, counterbalanced design study. Self-reported measures of sleepiness and objective measures of auditory performance and cortisol levels were collected on 3 Friday nights over the course of 3 consecutive weeks.Results: Performance improved significantly during the 30-min data collection period in all experimental conditions. Subjective sleepiness also decreased significantly with time awake in all experimental conditions. As hypothesized, performance of some tasks was significantly better in the red light mask condition than in the dim light condition. Performance scores in the red light goggles condition improved significantly after a few minutes of wearing the light goggles.Discussion: The results show that saturated red light delivered through closed eyelids at levels that do not suppress melatonin can be used to mitigate sleep inertia upon waking.Keywords: sleep inertia, cognitive performance, alertness, red light, closed eyelids
format	article
author	Figueiro MG Sahin L Roohan C Kalsher M Plitnick B Rea MS
author_facet	Figueiro MG Sahin L Roohan C Kalsher M Plitnick B Rea MS
author_sort	Figueiro MG
title	Effects of red light on sleep inertia
title_short	Effects of red light on sleep inertia
title_full	Effects of red light on sleep inertia
title_fullStr	Effects of red light on sleep inertia
title_full_unstemmed	Effects of red light on sleep inertia
title_sort	effects of red light on sleep inertia
publisher	Dove Medical Press
publishDate	2019
url	https://doaj.org/article/c002e3afdb04436fa8b51b877724eb64
work_keys_str_mv	AT figueiromg effectsofredlightonsleepinertia AT sahinl effectsofredlightonsleepinertia AT roohanc effectsofredlightonsleepinertia AT kalsherm effectsofredlightonsleepinertia AT plitnickb effectsofredlightonsleepinertia AT reams effectsofredlightonsleepinertia
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Effects of red light on sleep inertia

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