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- Title
Daytime nap and nighttime breastfeeding are associated with toddlers' nighttime sleep.
- Authors
Nakagawa, Machiko; Ohta, Hidenobu; Shimabukuro, Rinshu; Asaka, Yoko; Nakazawa, Takayo; Oishi, Yoshihisa; Hirata, Michio; Ando, Akiko; Ikeda, Takashi; Yoshimura, Yuko; Mitani, Yusuke; Kaneshi, Yousuke; Morioka, Keita; Fukutomi, Rika; Kobayashi, Kyoko; Ozawa, Miwa; Takeshima, Masahiro; Mishima, Kazuo; Kikuchi, Mitsuru; Cho, Kazutoshi
- Abstract
The purpose of the present study is to examine the association between toddlers' sleep arrangements and their nighttime sleep duration and other sleep variables. For this investigation, we performed a study in which child activity and sleep levels were recorded using actigraphy. The parents of 1.5-year-old toddlers (n = 106) were asked to attach an actigraphy unit to their child's waist with an adjustable elastic belt and complete a sleep diary for 7 consecutive days. Questionnaires were used to assess the sleep arrangements of the toddlers. There was a significant negative correlation between nap duration and nighttime sleep duration, suggesting that longer nap sleep induces shorter nighttime sleep duration. Among the sleep arrangements, such as nighttime breastfeeding or co-sleeping, only nighttime breastfeeding predicted shorter nighttime sleep duration. Our findings indicate that shorter naps induce a longer nighttime sleep in 1.5-year-old toddlers while nighttime breastfeeding decreases their nighttime sleep duration.
- Subjects
TODDLERS &; sleep; BREASTFEEDING; SLEEP-wake cycle; PARENT attitudes; QUESTIONNAIRES
- Publication
Scientific Reports, 2021, Vol 11, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-021-81970-6