scholarly journals COVID-19-mandated social restrictions unveil the impact of social time pressure on sleep and body clock

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Maria Korman ◽  
Vadim Tkachev ◽  
Cátia Reis ◽  
Yoko Komada ◽  
Shingo Kitamura ◽  
...  
Keyword(s):  
Sleep Duration ◽  
Time Pressure ◽  
Age Groups ◽  
Sleep Time ◽  
Sleep Regulation ◽  
School Work ◽  
Social Time ◽  
Final Sample ◽  
Sleep Deficit ◽  
The Impact

AbstractIn humans, sleep regulation is tightly linked to social times that assign local time to events, such as school, work, or meals. The impact of these social times, collectively—social time pressure, on sleep has been studied epidemiologically via quantification of the discrepancy between sleep times on workdays and those on work-free days. This discrepancy is known as the social jetlag (SJL). COVID-19-mandated social restrictions (SR) constituted a global intervention by affecting social times worldwide. We launched a Global Chrono Corona Survey (GCCS) that queried sleep–wake times before and during SR (preSR and inSR). 11,431 adults from 40 countries responded between April 4 and May 6, 2020. The final sample consisted of 7517 respondents (68.2% females), who had been 32.7 ± 9.1 (mean ± sd) days under SR. SR led to robust changes: mid-sleep time on workdays and free days was delayed by 50 and 22 min, respectively; sleep duration increased on workdays by 26 min but shortened by 9 min on free days; SJL decreased by ~ 30 min. On workdays inSR, sleep–wake times in most people approached those of their preSR free days. Changes in sleep duration and SJL correlated with inSR-use of alarm clocks and were larger in young adults. The data indicate a massive sleep deficit under pre-pandemic social time pressure, provide insights to the actual sleep need of different age-groups and suggest that tolerable SJL is about 20 min. Relaxed social time pressure promotes more sleep, smaller SJL and reduced use of alarm clocks.

scholarly journals 0915 Sleep Patterns and the Effect of Late Bedtime on School-Age Children and Adolescents: Preliminary Results

SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A348-A348
Author(s):  
P Matsangas ◽  
S Gratsia ◽  
A Cocos ◽  
H Vastardis ◽  
N L Shattuck
Keyword(s):  
Children And Adolescents ◽  
Sleep Duration ◽  
Sleep Disturbances ◽  
Age Groups ◽  
School Age Children ◽  
School Age ◽  
Age Group ◽  
Sleep Patterns ◽  
Sleep Deficit ◽  
The Impact

Abstract Introduction School-age children (6-13yrs) and teenagers (14-17yrs) should receive 9-11hrs and 8-10hrs of sleep/day, respectively. Several studies have shown, however, that these age groups are chronically sleep deprived. Our study assessed the sleep patterns of a sample of children and teenagers in Athens, Greece. The study is part of a larger project investigating the association between orthodontic treatment and sleep disturbances. Methods Participants (N=27; 69% females; 21 school-age children 9-13yrs, 6 teenagers 14-17yrs) were under treatment in the Orthodontic Clinic of the National and Kapodistrian University. Sleep was assessed with actigraphy/logs for 59±19 days. Results Participants slept on average 7.36±0.42hrs/day. Nighttime sleep was on average 7.23±0.43hrs (percentage sleep: 87.3%±3.38%). Four (14.8%) participants napped at least once/week. Compared to the lowest sleep duration recommended for their age group, participants showed a chronic sleep deficit of 1.42±0.52hrs/day (range: 0.32-2.15hrs). The younger age group had an average sleep deficit of ~1.6hrs compared to ~0.8hrs for the teenagers (p=0.006). During the school year, daily sleep duration increased by ~0.73hrs on weekends (7.78±0.67hrs) compared to school nights (7.05±0.48hrs; p<0.001). On average, school-age participants slept from 23:13 (±31min) until 7:19 (±22min) on school nights and from 23:23 (±2:72hrs) until 8:49 (±39min) on weekends. Teenagers slept from 00:34 (±36min) until 7:40 (±14min) on school nights and from 01:34 (±41min) until 10:34 (±48min) on weekends. Conclusion Our findings verify earlier survey results showing that restricted sleep is a problem for children and adolescents in Greece. To our surprise, both age groups go to bed quite late. The impact of late bedtime on sleep duration, however, is larger in the younger group due to their larger sleep needs. In contrast to earlier research in rural areas, napping was not common in our urban sample, probably due to extracurricular activities and studying at home. Support N/A

scholarly journals Sleep maturation influences cognitive development of preterm toddlers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Akiko Ando ◽  
Hidenobu Ohta ◽  
Yuko Yoshimura ◽  
Machiko Nakagawa ◽  
Yoko Asaka ◽  
...  
Keyword(s):  
Cognitive Development ◽  
Sleep Duration ◽  
Sleep Time ◽  
Brain Maturation ◽  
Sleep Diary ◽  
Sleep Regulation ◽  
Wake Time ◽  
Daytime Nap ◽  
Nighttime Sleep ◽  
The Relationship

AbstractOur recent study on full-term toddlers demonstrated that daytime nap properties affect the distribution ratio between nap and nighttime sleep duration in total sleep time but does not affect the overall total amount of daily sleep time. However, there is still no clear scientific consensus as to whether the ratio between naps and nighttime sleep or just daily total sleep duration itself is more important for healthy child development. In the current study, to gain an answer to this question, we examined the relationship between the sleep properties and the cognitive development of toddlers born prematurely using actigraphy and the Kyoto scale of psychological development (KSPD) test. 101 premature toddlers of approximately 1.5 years of age were recruited for the study. Actigraphy units were attached to their waist with an adjustable elastic belt for 7 consecutive days and a child sleep diary was completed by their parents. In the study, we found no significant correlation between either nap or nighttime sleep duration and cognitive development of the preterm toddlers. In contrast, we found that stable daily wake time was significantly associated with better cognitive development, suggesting that sleep regulation may contribute to the brain maturation of preterm toddlers.

scholarly journals Impact of COVID-19 lockdown on sleep-wake schedule and associated lifestyle related behavior: A national survey

2020 ◽  
Vol 9 (3) ◽  
Author(s):  
Meenakshi Sinha ◽  
Babita Pande ◽  
Ramanjan Sinha
Keyword(s):  
Digital Media ◽  
Sleep Duration ◽  
Age Groups ◽  
Sleep Onset ◽  
Media Exposure ◽  
Lifestyle Behaviors ◽  
Online Questionnaire ◽  
The People ◽  
Delayed Sleep ◽  
The Impact

Background: Lockdowns to prevent the community transmission of COVID-19 pandemic has confined the people at home and imposed social restrictions, which is expected to cause alterations in circadian driven sleep-wake schedule and its associated lifestyle behaviors. Design and Methods: An online questionnaire-based survey was conducted to assess the impact of lockdown on the sleep-wake pattern, meal timings and digital media exposure time on the Indian population during lockdown. Responses of 1511 participants (age ≥18 years) were analyzed to assess the effect of gender and age on these parameters before and during lockdown.Results: The sleep onset-wakeup times and meals’ time was significantly delayed during lockdown, which was more pronounced in younger subjects. However, young individuals reported increased sleep duration at this time. Increased digital media duration was evident in all age groups, mainly in males. However, females reported more delay in sleep onset-waking time and first meal timing with longer sleep duration during lockdown.Conclusions: Discord with social and natural cues due to complete lockdown during COVID-19 pandemic leads to a state of social jetlag with delayed sleep-wake, meal timings and excessive digital media exposure among Indians, which has differential impact on males and females as well as across different age groups. These findings have applied implications in sleep health and related behavior during longer social isolation conditions such as current COVID-19 or similar situations and may help to prepare better for any such future events.

scholarly journals Sleep During “Lockdown” in the COVID-19 Pandemic

2020 ◽  
Vol 17 (23) ◽  
pp. 9094 ◽  
Author(s):  
Athanasia Trakada ◽  
Pantelis T. Nikolaidis ◽  
Marilia dos Santos Andrade ◽  
Paulo José Puccinelli ◽  
Nicholas-Tiberio Economou ◽  
...  
Keyword(s):  
Sleep Duration ◽  
Health Professionals ◽  
Close Contact ◽  
Sleep Time ◽  
Quality Of Sleep ◽  
Web Based ◽  
Final Sample ◽  
Main Effect ◽  
Qualitative Characteristics

The aim of this study was to determine if the lockdown measures applied due to the pandemic of Coronavirus Disease 2019 (COVID-19) affected the sleep of the general population and health professionals in six different countries (Greece, Switzerland, Austria, Germany, France, and Brazil). We used a web-based survey with a short questionnaire of 13 questions, translated into four languages (Greek, German, French, and Portuguese). The questionnaire included information about demographic and professional data, quantitative and qualitative characteristics of sleep, degree of abidance in lockdown measures, and data about illness or close contact with active confirmed cases of COVID-19. Initially, 2093 individuals participated. After exclusion of those who did not report their duration of sleep, the final sample comprised 1908 participants (Greek, n = 1271; German, n = 257, French, n = 48; Portuguese, n = 332), aged 42.6 ± 12.7 years, who were considered for further analysis. A main effect of the lockdown week on sleep duration was observed (+0.25 h; 95% confidence intervals, CI, 0.17, 0.32; p < 0.001), with the total sleep time of the lockdown week being longer than that under normal conditions. A week*occupation interaction on sleep duration was demonstrated (p < 0.001, η2 = 0.012). Sleep duration remained stable in health professionals (−0.18 h; 95% CI −0.36, 0.01; p = 0.063), whereas it increased in other occupations by 0.31 h (95% CI, 0.24, 0.39; p < 0.001). In terms of sleep quality, 15% of participants characterized their sleep as bad and 37.9% as average during the lockdown week. Almost 1 in 3 individuals (31.3%) reported worse quality of sleep during the lockdown week than under normal conditions. Sleep during the lockdown week was characterized as good by 47.1%, but only 38% of the health professionals group. In conclusion, the COVID−19 pandemic and lockdown affected sleep in different ways, depending on age, level of education, occupation, and country of residence.

Assessing the impact of durable flooring structures on refugee sleep quality and duration

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Thomas James Greene ◽  
Christina Ann Chao
Keyword(s):  
Sleep Quality ◽  
Sleep Duration ◽  
Well Being ◽  
Baseline Survey ◽  
Future Research ◽  
Number Of Factors ◽  
Final Sample ◽  
The Impact

Conflict and persecution continue to displace people from their homes adding to an already overwhelming refugee crisis worldwide. Overall, refugee health is difficult to measure objectively and is influenced by a number of factors including transient, and often inadequate, housing conditions. Emergency Floor (EF) is a quickly deployable, lightweight, insulated flooring system intended to protect temporary structures from extreme temperatures and outdoor conditions. A pilot study was conducted in two informal tented settlements in Hermel-Baalbek, Lebanon to assess how installing Emergency Floors in tented shelters impacted sleep duration and quality, indicators of overall wellness, among refugees. A baseline survey was administered, and Emergency Floors were installed in all households in both settlements in October 2016. A follow-up survey was conducted to record outcomes in April 2017. Thirty-four households consisting of 150 individuals participated in the baseline survey. Seven households were were not available for follow-up survey due to moving away from the area. The final sample yielded a total of 27 households and 120 individuals. Results indicated that sleep duration significantly increased, and sleep quality significantly improved after EF installation. Furthermore, respondents reported feeling more comfortable, warmer, safer, and cleaner when sleeping in a shelter with EF installed. These encouraging results suggest an overall increase in perceived well-being. Future research should continue monitoring floors to assess long term wear and explore additional uses for EF in other temporary structures.

Impact of a Pharmacist-Led Intensive Care Unit Sleep Improvement Protocol on Sleep Duration and Quality

2020 ◽  
pp. 106002802097319
Author(s):  
Jessica L. Andrews ◽  
Patricia R. Louzon ◽  
Xavier Torres ◽  
Eric Pyles ◽  
Mahmood H. Ali ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Sleep Quality ◽  
Sleep Duration ◽  
Sleep Time ◽  
Protocol Implementation ◽  
Mechanically Ventilated ◽  
Activity Tracker ◽  
The Impact ◽  
Perceived Sleep Quality

Background: Sleep improvement protocols are recommended for use in the intensive care unit (ICU) despite questions regarding which interventions to include, whether sleep quality or duration will improve, and the role of pharmacists in their development and implementation. Objective: To characterize the impact of a pharmacist-led, ICU sleep improvement protocol on sleep duration and quality as evaluated by a commercially available activity tracker and patient perception. Methods: Critical care pharmacists from a 40-bed, mixed ICU at a large community hospital led the development and implementation of an interprofessional sleep improvement protocol. It included daily pharmacist medication review to reduce use of medications known to disrupt sleep or increase delirium and guideline-based recommendations on both environmental and nonpharmacological sleep-focused interventions. Sleep duration and quality were compared before (December 2018 to December 2019) and after (January to June 2019) protocol implementation in non–mechanically ventilated adults using both objective (total nocturnal sleep time [TST] measured by an activity tracker (Fitbit Charge 2) and subjective (patient-perceived sleep quality using the Richards-Campbell Sleep Questionnaire [RCSQ]) measures. Results: Groups before (n = 48) and after (n = 29) sleep protocol implementation were well matched. After protocol implementation, patients had a longer TST (389 ± 123 vs 310 ± 147 minutes; P = 0.02) and better RCSQ-perceived sleep quality (63 ± 18 vs 42 ± 24 mm; P = 0.0003) compared with before implementation. Conclusion and Relevance: A sleep protocol that incorporated novel elements led to objective and subjective improvements in ICU sleep duration and quality. Application of this study may result in increased utilization of sleep protocols and pharmacist involvement.

scholarly journals Prevalence of sleep problems and its relation to sleeping habits in toddlers

2019 ◽  
Vol 2 (1) ◽  
pp. 29-34
Author(s):  
Sima Maree ◽  
Esa Mohammadi Zidi ◽  
Saeed Yari ◽  
Maryam Javadi
Keyword(s):  
Sleep Duration ◽  
Attention Deficit Disorder ◽  
Sleep Problems ◽  
Pearson Correlation ◽  
Sleep Time ◽  
Sleep Habits ◽  
Chi Square ◽  
Sleeping Habits ◽  
Children’S Sleep ◽  
The Impact

Background: Sleep problems in children have serious physical and psychological consequences such as obesity, aggression and attention deficit disorder in toddlers. The aim of the present study was to determine the prevalence of sleep problems and its relation with sleeping habits of toddlers in 2017. Methods: By random sampling from rural families of Razan city of Hamadan province, 120 mothers of 12- to 36-month-old children were selected and data collection tools included contextual questions, medical history and 33-question questionnaire of children's sleep habits (CSHQ) completed. Data were analyzed by SPSS software version 23, independent t-test, chi-square, Pearson correlation coefficient and multiple linear regression. Results: The mean age of the children was 22.82±7.53 months and 55% of them were boys and the prevalence of sleep problems was 70.8% (95% confidence interval: 71.9-69.7). The average sleep duration of the children was 11 hours and more than 60% of the children went to bed after 23 o'clock. Results show that age is an important factor in most dimensions of CSHQ and age predicts daytime sleepiness (β = -0.263), nocturnal wakefulness (β = -0.113) and duration, Sleep time (β = -0.108) and sleep resistance (β = 0.194) respectively. Also, parents' education and child's current weight were predictors of subscales of CSHQ questionnaire (P <0.05). In addition, there was a positive and significant correlation between sleep duration with infant sleep anxiety (r = 0.527) and resistance to sleep (r = 0.473) as well as nocturnal wakefulness with parasomnia (r = 0.416) (P <0.001). Conclusion: Given the alarming prevalence of sleep problems in toddlers in the present study and the impact of some changeable factors on children's sleep health, designing interventions aimed at educating mothers to improve healthy sleep habits in toddlers is necessary.

scholarly journals Mutant neuropeptide S receptor reduces sleep duration with preserved memory consolidation

2019 ◽  
Vol 11 (514) ◽  
pp. eaax2014 ◽  
Author(s):  
Lijuan Xing ◽  
Guangsen Shi ◽  
Yulia Mostovoy ◽  
Nicholas W. Gentry ◽  
Zenghua Fan ◽  
...  
Keyword(s):  
Sleep Duration ◽  
Memory Consolidation ◽  
Critical Role ◽  
Sleep Time ◽  
Neuropeptide S ◽  
Sleep Regulation ◽  
Human Sleep ◽  
Increased Sensitivity ◽  
Mutant Receptors

Sleep is a crucial physiological process for our survival and cognitive performance, yet the factors controlling human sleep regulation remain poorly understood. Here, we identified a missense mutation in a G protein–coupled neuropeptide S receptor 1 (NPSR1) that is associated with a natural short sleep phenotype in humans. Mice carrying the homologous mutation exhibited less sleep time despite increased sleep pressure. These animals were also resistant to contextual memory deficits associated with sleep deprivation. In vivo, the mutant receptors showed increased sensitivity to neuropeptide S exogenous activation. These results suggest that the NPS/NPSR1 pathway might play a critical role in regulating human sleep duration and in the link between sleep homeostasis and memory consolidation.

scholarly journals 0267 School Night Sleep Duration Effect on Risk for In-and-Out of School Suspensions: An Investigation in a Middle-School Aged Sample

SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A102-A102
Author(s):  
J D Cook ◽  
P E Peppard ◽  
E E Blair ◽  
K M Tran ◽  
D T Plante
Keyword(s):  
Middle School ◽  
Sleep Duration ◽  
Full Model ◽  
Aged Sample ◽  
School Suspension ◽  
Final Sample ◽  
Increased Risk ◽  
School Start Times ◽  
The Impact ◽  
Out Of School

Abstract Introduction Sleep plays an important role in adolescent education and development. Sleep impacts student school attendance, academic performance, and daytime behaviors. There has been limited investigation into the impact on sleep duration (SD) on school suspension risk. Given the growing public health and policy focus on altering school start times to increase SD, this study assessed SD association with school suspension risk using a middle-school aged sample from the Madison (Wisconsin) Metropolitan School District (MMSD), prior to implementation of a planned district-wide delay in middle school start times. Methods 4,175 middle-school aged students from 12 MMSD schools completed a sleep survey, which included school-night SD (SNSD). Self-reported SNSD between 4-and-12 hours served as criterion for inclusion in final sample. Mixed effects modeling was employed with students nested within school. Logistic regression determined SNSD association with in-school (ISS) and out-of-school (OSS) suspensions. ISS and OSS were dichotomized (No ISS/OSS = 0; nonzero ISS/OSS = 1) to serve as outcome variables. Full model covariates included age, sex, race, circadian preference, parent educational level, homelessness, free and reduced lunch, and special education status. Results Final sample included 3,860 students. Shorter SNSD associated with greater likelihood of OSS [OR = 0.83, 95% CI (-0.28, -0.09), X2 = 16.1, p &lt; 0.0001], but not ISS [OR = 0.97, 95% CI (-0.14, -0.070), X2 = 0.44, p = 0.51]. Significance between SNSD and OSS was maintained in the full model [OR = 0.84, 95% CI (-0.27, -0.08), X2 = 13.2, p = 0.0003]. Each additional hour of sleep associated with 16% lower risk of OSS. Conclusion These results suggest that students with shorter SD are at increased risk for OSS, which further highlights the potential deleterious impact of short SD on adolescent educational experience. Support This research was generously supported by a grant from the Madison Education Partnership (MEP).

063 Differential Impact of Sleep Duration on Nocturnal Blood Pressure Dipping Between Men and Women

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A26-A26
Author(s):  
Jeremy Bigalke ◽  
Ian Greenlund ◽  
Jennifer Nicevski ◽  
Neha John-Henderson ◽  
Jason Carter
Keyword(s):  
Blood Pressure ◽  
Sleep Duration ◽  
Significant Relationship ◽  
Sleep Time ◽  
Cardiovascular Complications ◽  
Poor Sleep ◽  
Sample Population ◽  
Wrist Actigraphy ◽  
Nocturnal Blood Pressure Dipping ◽  
The Impact

Abstract Introduction There is growing evidence that poor sleep may have a greater impact on the development of cardiovascular complications in women compared to men. However, most studies that have evaluated the impact of sex on sleep insufficiencies and blood pressure (BP) have not utilized ambulatory BP, and often rely more heavily on subjective sleep diaries as opposed to objective sleep assessment. The purpose of this study was to examine the impact of sex on the relationship between objectively measured sleep and nocturnal BP dipping. We hypothesized that poor sleep would be associated with decreased nocturnal BP dipping, and that this association would be stronger in women. Methods Total sleep time (TST) and sleep efficiency (SE) were monitored in fifty adults (31 men, 19 women; 36±3 years; 26±1 kg/m2) utilizing wrist actigraphy monitoring over the course of 5–14 days (Avg: 10±0 days). On a separate occasion, participants underwent a 24-hour ambulatory BP recording session. Independent samples T-tests were used to compare characteristics between sexes. Partial correlations controlling for age and BMI were utilized to probe relationships between sleep and nocturnal BP dipping. Results TST and SE were not different between sexes. However, women exhibited reduced mean arterial pressure (MAP: 86±1 vs. 90±1 mmHg, P=0.026) compared to men. Partial correlation revealed a significant relationship between TST and the magnitude of nocturnal MAP dipping in the sample population (R = 0.460, P&lt;0.001). When stratified by sex, this significant relationship persisted in men (R = 0.610, P&lt;0.001), but not women (R = 0.108, P&gt;0.05). In contrast, no relationship was observed between SE and nocturnal MAP dipping (R = -0.052, P&gt;0.05) for the sample population. Similarly, SE did not correlate with nocturnal MAP dipping in men (R = -0.080, P&gt;0.05) or women (R = 0.045, P&gt;0.05). Conclusion Contrary to our initial hypothesis, our results demonstrate that actigraphy-based TST is associated with nocturnal BP dipping in healthy men, but not women. This suggests a relation between impaired nocturnal BP regulation and habitual sleep duration, potentially predisposing men to an increased overall risk for cardiovascular complications. Support (if any) National Institutes of Health (HL-098676 and HL-122919)

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