Effects of a single night of postpartum sleep on childless women's daytime functioning

PHYSIOLOGY & BEHAVIOR

卷:156

Article

McBean, Amanda L.^1,2,3  Kinsey, Steven G.¹  Montgomery-Downs, Hawley E.¹ 

[1] W Virginia Univ, Dept Psychol, 53 Campus Dr,POB 6040, Morgantown, WV 26506 USA

[2] Stanford Univ, Sch Med, Dept Psychiat & Behav Sci, Palo Alto, CA 94304 USA

[3] USA VA Palo Alto Healthcare Syst, Palo Alto, CA USA

关键词: Maternal;    Sleep fragmentation;    Mood;    Daytime sleepiness;    Sleep quality;    Polysomnography;   

DOI  :  10.1016/j.physbeh.2016.01.014

来源: Elsevier

【 摘 要 】

Study objectives: The maternal postpartum period is characterized by sleep fragmentation, which is associated with daytime impairment, mental health disturbances, and changes in melatonin patterns. In addition to sleep fragmentation, women undergo a complex set of physiological and environmental changes upon entering the postpartum period, confounding our understanding of effects of postpartum sleep disturbance. The primary study aim was to understand the basic impact of a single night of postpartum-like sleep fragmentation on sleep architecture, nocturnal melatonin levels, mood, daytime sleepiness, and neurobehavioral performance. Measurements and results: For one week prior to entry into the laboratory, eleven healthy nulliparous women kept a stable sleep-wake schedule (verified via actigraphy). Participants contributed three consecutive nights of laboratory overnight polysomnography: (1) a habituation/sleep disorder screening night; (2) a baseline night; and (3) a sleep fragmentation night, when participants were awakened three times for similar to 30 min each. Self-reported sleep quality and mood (Profile of Mood States survey) both decreased significantly after sleep fragmentation compared to baseline measurements. Unexpectedly, daytime sleepiness (Multiple Sleep Latency Test) decreased significantly after sleep fragmentation. Experimental fragmentation had no significant effect on time spent in nocturnal sleep stages, urinary 6-sulfatoxymelatonin concentration, or psychomotor vigilance test performance. Participants continued to provide actigraphy data, and daily PVTs and self-reported sleep quality assessments at home for one week following sleep fragmentation; these assessments did not differ from baseline values. Conclusions: While there were no changes in measured physiological components of a single night of postpartum-like experimental sleep fragmentation, there were decreases in self-reported measures of mood and sleep quality. Future research should examine the effects of multiple nights of modeling postpartum-like sleep fragmentation on objective measures of sleep and daytime functioning. (C) 2016 Elsevier Inc. All rights reserved.

【 授权许可】

Free