Minimal Effect of Daytime Napping Behavior on Nocturnal Sleep in Pregnant Women

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
Rebecca M EbertMichele L Okun

Abstract

To assess whether daytime naps negatively impact nocturnal sleep. Longitudinal, prospective cohort design. 161 pregnant women recruited and evaluated in early gestation (10-20 weeks). Daily sleep information was collected in three 2-week periods (10-12, 14-16, and 18-20 weeks gestation) with a daily sleep diary and an actigraph. The average number of naps, as well as the average length of each nap, were calculated from sleep diaries. Women were categorized first as non nappers (0 naps/2-week period), moderate nappers (1-3 naps/2-week period), or frequent nappers (≥ 4 naps/2-week period). Then, based on the average nap length, they were categorized as short (< 90 min) or long (≥ 90 min) nappers. Nocturnal sleep parameters included SOL, WASO, SE, and TST. SAS procedure MIXED was used for modeling the main effects of nap group and time, and time by nap group interactions. Women who took naps had a decrease in diary-assessed nocturnal TST, but not actigraphy-assessed TST. This observation was group- and time-specific. There were no other group differences. Women who napped ≥ 90 min had poorer diary-assessed SE and lower diary-assessed TST than those who took shorter naps. Length of nap was not associated with any other sleep measur...Continue Reading

Citations

Jul 22, 2018·Journal of Behavioral Medicine·Michele L OkunMary Coussons-Read
Oct 16, 2016·Behavioral Sleep Medicine·Joshua H BakerMichele L Okun
Feb 2, 2018·Behavioral Sleep Medicine·Xiaopeng JiJianghong Liu

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