Season is related to the slow wave and sigma activity of infants and toddlers

Kärki, Anja; Huhtala, Heini; Saastamoinen, A.; Saarenpää‐Heikkilä, Outi; Paavonen, E. Juulia; Himanen, Sari-Leena

doi:10.1016/j.sleep.2022.09.006

Cited by 1 publication

(1 citation statement)

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“…People tend to sleep longer during the winter season than other seasons 48 and infants and toddlers sleep more deeply during the darker seasons. 49 Thus, this seasonal effect may translate into better sleep quantity/quality at age 3 months (ie, our first time point in winter) in children born in autumn, which could result in better sleep consolidation and quality up to 36 months of age and thus less disturb parental sleep. This hypothesis should be confirmed by other studies.…”

Section: Discussionmentioning

confidence: 99%

Parents’ Sleep Multi-Trajectory Modelling from 3 to 36 Months Postpartum in the SEPAGES Cohort

Kim,

Lyon-Caen,

Bayat

et al. 2024

NSS

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Objective We investigated maternal and paternal sleep evolution from 3 to 36 months postpartum, their interrelations and predictors in the SEPAGES cohort. Methods Sleep information (night sleep duration [NSD], weekend daytime sleep duration [DSD] and subjective sleep loss [SSL]) was collected by self-administered questionnaires at 3, 18, 24 and 36 months postpartum in the SEPAGES French cohort that included 484 mothers and 410 fathers. Group-based multi-trajectory modelling was used to identify maternal, paternal and couple sleep multi-trajectory groups among 188 couples reporting sleep data for at least 2 time points. Multinomial logistic regression was used to assess associations between parental sleep multi-trajectories and early characteristics such as sociodemographic, chronotypes, child sex, birth seasonality or breastfeeding duration. Results We identified three maternal (M1-M3), paternal (F1-F3) and couple (C1-C3) sleep multi-trajectory groups with similar characteristics: a group with short NSD and high SSL prevalence (M1, F2, C2), a group with long NSD but medium SSL prevalence (M2, F3, C3) and a group with long NSD and low SSL prevalence (M3, F1, C1). Mothers with the shortest NSD (M1) were less likely to have a partner with long NSD (F2). As compared with long NSD and low SSL prevalence (C1), couples with short NSD and high SSL prevalence (C2) were less likely to have had a first child born in the autumn and fathers in C2 had a later chronotype. Conclusion We identified distinct sleep multi-trajectory groups for mothers, fathers and couples from 3- to 36-month postpartum. Sleep patterns within couples were homogeneous.

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Section: Discussionmentioning

confidence: 99%