Daytime microsleeps during 7 days of sleep restriction followed by 13 days of sleep recovery in healthy young adults

Clément Bougard; Danielle Gomez-Merino; Arnaud Rabat; Pierrick Arnal; Pascal Van Beers; Mathias Guillard; Damien Léger; Fabien Sauvet; Mounir Chennaoui

doi:10.1016/j.concog.2018.03.008

Daytime microsleeps during 7 days of sleep restriction followed by 13 days of sleep recovery in healthy young adults

Conscious Cogn. 2018 May:61:1-12. doi: 10.1016/j.concog.2018.03.008. Epub 2018 Apr 6.

Authors

Clément Bougard¹, Danielle Gomez-Merino², Arnaud Rabat², Pierrick Arnal², Pascal Van Beers², Mathias Guillard², Damien Léger³, Fabien Sauvet², Mounir Chennaoui²

Affiliations

¹ French Armed Forces Biomedical Research Institute, Fatigue and Vigilance Team, Brétigny-sur-Orge, France; EA 7330 VIFASOM, Université Paris Descartes, Paris, France. Electronic address: clement.bougard@live.fr.
² French Armed Forces Biomedical Research Institute, Fatigue and Vigilance Team, Brétigny-sur-Orge, France; EA 7330 VIFASOM, Université Paris Descartes, Paris, France.
³ EA 7330 VIFASOM, Université Paris Descartes, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, APHP, Hôtel Dieu, Centre du Sommeil et de la Vigilance, Paris, France.

PMID: 29631192
DOI: 10.1016/j.concog.2018.03.008

Abstract

We investigated the consequences of sleep restriction (SR) on maintenance of wakefulness capacities and diurnal sleepiness through microsleeps monitoring. 12 healthy males (20-36 years old) were sleep restricted (4 h per night) during 7 nights followed by 13 nights of recovery sleep. Participants completed Karolinska Sleepiness Scale (KSS) and Maintenance of Wakefulness Test (MWT) at baseline (B), during SR (SR1, SR4 and SR7) and during recovery (R3 and R13), while continuously recorded for EEG analysis. During SR, MWT latencies decreased (SR7: -24.4%), whereas the number, the cumulative duration of microsleeps and KSS scores increased. Recovery nights allowed MWT latencies, KSS scores and all sleep values to return to baseline levels, while a rebound in N3, N3% and REM% sleep stages occurred. During SR, the maintenance of N3 sleep duration seems not sufficient to reduce daytime sleepiness and MWT results did not reflect the sleepiness levels characterized by persistent sleep attacks.

Keywords: Daytime sleepiness; Microsleeps; Recovery; Sleep restriction; Sleep stages.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adult
Brain Waves / physiology*
Circadian Rhythm / physiology*
Humans
Male
Monitoring, Ambulatory
Sleep Deprivation / physiopathology*
Sleep Stages / physiology*
Sleepiness*
Wakefulness / physiology*
Young Adult