Biologically normal sleep in the mother‐infant dyad

Objectives We examine infant sleep from evolutionary, historico‐cultural, and statistical/epidemiological perspectives and explore the distinct conceptions of “normal” produced by each. We use data from the “Sleeping Like a Baby” study to illustrate how these perspectives influence the ideals and practices of new parents. Methods The “Sleeping Like a Baby” study investigated maternal–infant sleep in north‐east England. Sleep data for exclusively breastfeeding (EBF) and formula‐feeding (EFF) dyads were captured every 2 weeks from 4 to 18 weeks postpartum through actigraphy and maternal report. Mothers also reported their infant sleep ideals and practices. Results explore objective and maternally‐reported infant sleep parameters, and concordance of maternal ideals and practices with public health guidance. Results Comparison of sleep measures showed that mothers overestimate infant sleep duration compared with actigraphy; EFF mothers' reports were significantly more inaccurate than those of EBF mothers. For infants moved to a separate bedroom, maternally‐reported sleep increases were not borne out by actigraphy. Across the study period, concordance of maternal ideal sleep location with public health recommendations occurred on average for 54% of mothers, while concordance in practice fell from 75% at 4–8 weeks to 67% at 14–18 weeks. Discordance for EBF dyads occurred due to bedsharing, and for EFF dyads due to infants sleeping in a room alone. Conclusions Beliefs about “normal” infant sleep influence parents' perceptions and practices. Clinical and scientific infant sleep discourses reinforce dominant societal norms and perpetuate these beliefs, but biological and evolutionary views on infant sleep norms are beginning to gain traction with parents and health practitioners

Digital health tools to support parents with parent-infant sleep and mental well-being

Digital technology is increasingly important in people’s lives, particularly for new parents as it allows them to access information, stay connected to peers and offers them seductive solutions for improving infant sleep and parental well-being. Digital technology has been developed to support parents in the following four ways: (1) providing digital information on infant sleep, (2) offering targeted support for night-time care, (3) managing infant sleep and (4) monitoring infant sleep and safety. Evidence on the effectiveness of these strategies is varied and there are concerns regarding the reliability of information, use of personal data, commercial exploitation of parents, and the effects of replacing caregiver presence with digital technology

Night-time on a postnatal ward: experiences of mothers, infants, and staff

This chapter illustrates an alternative approach to video ethnography, in which video case studies are described alongside semi-structured interview responses to detail night-time challenges of mothers, newborns, and hospital staff on a postnatal ward. Data from three original, inter-related research projects were combined. We uncovered five themes: maternal need for support, response to infant cues, negative experiences, bedsharing as a way of coping, and insufficient staffing. In detailing these issues, we draw attention to previously unknown or unacknowledged obstacles for new mothers and their infants, as well as the constraints on the staff involved in their care

Discrepancies in maternal reports of infant sleep vs. actigraphy by mode of feeding

Objectives: Many studies of infant sleep rely solely on parentally-reported data, assuming that parents accurately report their infant’s sleep parameters. The objective of this paper is to examine whether night-time sleep parameters of exclusively breastfed or exclusively formula-fed infants differ, and whether correspondence between parental reports and objective measures varies by feeding type. Methods: Mother-infant dyads intending to breastfeed or formula-feed exclusively for 18 weeks were recruited. Mothers were multiparas and primiparas, aged between 18 and 45 years. Infants were full-term, normal birthweight singletons. Maternal report and actigraphic data on infant sleep were collected fortnightly, from four to 18 weeks postpartum. Data were analysed cross-sectionally using t-tests and GLM analysis to control for interaction between feed-type and sleep location. Results: Actigraphy-assessed infant sleep parameters did not vary by feed-type but parentally reported sleep parameters did. Maternal report and actigraphy data diverged at 10 weeks postpartum and discrepancies were associated with infant feeding type. Compared to actigraphy, maternal reports by formula-feeding mothers (controlling for infant sleep location) over-estimated infant’s Total Sleep Time (TST) at 10 weeks and Longest Sleep Period (LSP) at 10, 12 and 18 weeks. Conclusions: These results raise questions about the outcomes of previous infant sleep studies where accuracy of parentally-reported infant sleep data is assumed. That parental reports of infant sleep vary by feeding type is particularly important for reconsidering previous studies of infant sleep development and intervention studies designed to influence sleep outcomes, especially where feed-type was heterogeneous, but was not considered as an independent variable

Sleep tight! Adolescent sleep quality across three distinct sleep ecologies

Background and objectivesGood sleep quality, associated with few arousals, no daytime sleepiness and self-satisfaction with one’s sleep, is pivotal for adolescent growth, maturation, cognition and overall health. This article aims to identify what ecological factors impact adolescent sleep quality across three distinct sleep ecologies representing a gradient of dense urbanity to small, rural environments with scarce artificial lighting and no Internet.MethodologyWe analyze variation of sleep efficiency, a quantitative measure of sleep quality—defined as the ratio of total time spent asleep to total time dedicated to sleep—in two agricultural indigenous populations and one post-industrial group in Mexico (Campeche = 44, Puebla = 51, Mexico City = 50, respectively). Data collection included actigraphy, sleep diaries, questionnaires, interviews and ethnographic observations. We fit linear models to examine sleep efficiency variation within and between groups.ResultsWe found that sleep efficiency varied significantly across sites, being highest in Mexico City (88%) and lowest in Campeche (75%). We found that variation in sleep efficiency was significantly associated with nightly exposure to light and social sleep practices.Conclusions and implicationsOur findings point toward contextual cost-benefits of sleep disruption in adolescence. We highlight the need to prioritize research on adolescent sleep quality across distinct developmental ecologies and its impact on health to improve adolescent wellbeing through evidence-based health practices

Sleep deprivation among adolescents in urban and indigenous-rural Mexican communities

Comparing the nature of adolescent sleep across urban and more isolated, rural settings through an ecological, cross-cultural perspective represents one way to inform sleep nuances and broaden our understanding of human development, wellbeing and evolution. Here we tested the Social Jetlag Hypothesis, according to which contemporary, urban lifestyles and technological advances are associated with sleep insufficiency in adolescents. We documented the adolescent sleep duration (11–16 years old; X̅ = 13.7 ± 1.21; n = 145) in two small agricultural, indigenous and one densely urban context in Mexico to investigate whether adolescents in socio-ecologically distinct locations experience sleep deprivation. Sleep data was assembled with actigraphy, sleep diaries and standardized questionnaires. We employed multilevel models to analyze how distinct biological and socio-cultural factors (i.e., pubertal maturation, chronotype, napping, gender, working/schooling, access to screen-based devices, exposure to light, and social sleep practices) shape adolescent sleep duration. Results suggest that the prevalence of adolescent short sleep quotas is similar in rural, more traditional environments compared to highly urbanized societies, and highlight the influence of social activities on the expression of human sleep. This study challenges current assumptions about natural sleep and how adolescents slept before contemporary technological changes occurred

Construction of the Views oN Infant Sleep (VNIS) Questionnaire

Parents' beliefs about infant sleep behaviour vary over time and across cultures. No validated instrument exists to understand parents' pre- and postnatal views on infant sleep behaviours, which may influence their caregiving decisions. The Views oN Infant Sleep Questionnaire (VNIS) will be a tool to assess parents' beliefs in order to facilitate tailored perinatal care, increase the reliability of postnatal self-report measures, allow for cross-cultural comparisons, and provide a baseline for researchers to use in longitudinal studies. We recruited an online sample of 971 female participants who were resident in the United Kingdom, at least 28 weeks pregnant, and at least 18 years of age. The initial questionnaire consisted of 31 questions about infant independence, night-waking, infant feeding, touch, and safety, and items were rated on a 5-point Likert scale. The item pool was reduced to 12 using principal component analysis and a structure was found for the three components “Closeness”, “Independence”, and “Night-waking”. Overall, these results suggest that the VNIS can provide a brief scale to measure different aspects of individuals' beliefs about infant sleep. In further research the VNIS needs to be validated with a confirmatory factor analysis in another sample, and to be tested as a cross-cultural instrument

Exploring the Longitudinal Relationship Between Short Sleep Duration, Temperament and Attention Deficit Hyperactivity Disorder Symptoms in a Biethnic Population of Children Aged Between 6 and 61 Months:A Born in Bradford Study

Objective: Examine the association between sleep duration, temperament and symptoms of Attention Deficit Hyperactivity Disorder (ADHD) in a biethnic child-population from The Born in Bradford cohort. Method: Parent-report sleep duration categorized children as: early short, late short, consistently short or consistently normal sleepers between 6 and 36 months. Temperament was measured using the Infant Characteristics Questionnaire at 6 months. The Strengths and Difficulties Questionnaire assessed symptoms of ADHD at 37, 54, and 61 months. Results: Normal sleepers before 18 months had significantly fewer ADHD symptoms at 37 months compared with consistently short sleepers. Fussiness at 6 months was significantly positively associated with ADHD symptoms at 37 and 54 months; but does not appear to mediate the relationship between sleep duration and ADHD symptoms. Conclusion: Awareness of the relationship between short sleep duration and fussiness in infancy and later ADHD symptomatology may support earlier identification of arising difficulties in children

Postnatal Unit Bassinet Types When Rooming-In after Cesarean Birth: Implications for Breastfeeding and Infant Safety

Postnatal unit rooming-in promotes breastfeeding. Previous research indicates that side-cars (three-sided bassinets that lock onto the maternal bed-frame) faciliate breastfeeding after vaginal birth more than stand-alone bassinets (standard rooming-in). No study has previously investigated side-car bassinet use after cesarean, despite the constraints on maternal-infant interactions that are inherent in recovery from this birth mode