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Impact of COVID-19 on the sleep-wake patterns of preschool children
1Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong; Department of Paediatrics and Adolescent Medicine, Tuen Mun Hospital, Hong Kong.
Insights
The COVID-19 pandemic altered preschooler sleep patterns, delaying bedtimes and wake times. Increased screen time and parental sleep habits, not longer sleep, characterized this period.
Area of Science:
- Pediatric Sleep Medicine
- Public Health
- Epidemiology
Background:
- The COVID-19 pandemic significantly disrupted daily routines globally.
- Preschoolers' developmental stages are sensitive to environmental and behavioral changes.
- Understanding pandemic's impact on early childhood sleep is crucial for well-being.
Purpose of the Study:
- To investigate the effects of the COVID-19 pandemic on preschool children's sleep-wake patterns.
- To identify factors influencing sleep changes in young children during the pandemic.
Main Methods:
- A longitudinal cohort study design was employed.
- Data collected via online questionnaires from parents regarding child and parental sleep, activity, and screen time.
- Comparison of sleep data from before and during the pandemic.
Main Results:
- Preschoolers exhibited delayed bedtimes and wake times, with reduced nap duration.
- Average daily sleep duration decreased during weekdays and weekends.
- Increased screen time and decreased outdoor activity were observed, alongside delayed parental sleep schedules.
Conclusions:
- Preschoolers did not experience increased sleep duration despite school closures.
- Screen time and parental sleep patterns significantly influenced children's sleep habits.
- Targeted health education on screen time and sleep hygiene for families is recommended.
Objective:
To explore the impact of the COVID-19 pandemic on the sleep-wake patterns of preschool children.
Methods:
A cohort of preschoolers established before the COVID-19 pandemic was invited to participate in this study. Data including children's demographics, their own and parental sleep-wake patterns, physical activities, and screen time were collected through an online questionnaire from August to September 2020. A comparison was made on the collected data from the same cohort of children before and during the pandemic.
Results:
The cohort which was established before the pandemic consisted of 3720 preschoolers. For this current study, 642 (17%) participated, and 497 (13%) children who fulfilled the eligibility criteria were included in the final analysis. They showed a delay in their bedtime and wake time on both weekdays and weekends with a 15-30 min increase in nocturnal sleep duration. However, with a reduction in nap time, the average daily sleep duration was shortened by 16.3 ± 64.3 min (p < 0.001) and 27.5 ± 72.9 min (p < 0.001) during weekdays and weekends, respectively. Screen time was increased while outdoor activity duration was decreased. Parental sleep/wake times were also delayed with an increase in sleep duration. Children's sleep habits were associated with screen time and parental sleep/wake patterns.
Conclusion:
Despite school suspension during the COVID-19 pandemic, preschoolers were not sleeping longer. Screen time and parental sleep/wake patterns were the major factors driving the preschoolers' sleep habits. Health education is required to control screen time in children and to promote sleep hygiene among all family members.
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