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Updated: Jul 10, 2026

Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
Published on: October 2, 2019
Sleep and napping patterns in 3-to-5-year old children attending full-day childcare centers
Teresa M Ward1, Caryl Gay, Thomas F Anders
1Biobehavioral Nursing & Health Systems, University of Washington, Seattle, WA 98195-7266, USA. teward@u.washington.edu
Insights
Preschoolers in full-day childcare nap frequently, averaging 75.8 minutes. Those who nap have slightly less nighttime sleep than peers who do not nap.
Area of Science:
- Pediatric Sleep Science
- Child Development
- Chronobiology
Background:
- Understanding sleep patterns in young children is crucial for growth and development.
- Full-day childcare settings are common environments for preschool-aged children.
- The impact of napping on overall sleep architecture in this age group requires investigation.
Purpose of the Study:
- To characterize daytime napping behaviors in 3-5-year-old children attending full-day childcare.
- To analyze nighttime sleep duration in relation to napping habits.
- To describe overall 24-hour sleep-wake patterns in this population.
Main Methods:
- A descriptive, cross-sectional study design was employed.
- Fifty-two healthy children aged 3-5 years participated.
- Ankle actigraphy was used for continuous sleep and nap monitoring over three consecutive days and nights in childcare settings.
Main Results:
- Children averaged approximately 10 hours of total 24-hour sleep, as measured by actigraphy.
- The majority of children (41 out of 52) took naps, with an average nap duration of 75.8 minutes.
- Children who napped had shorter nocturnal sleep durations (9.0 hours) compared to non-nappers (9.8 hours).
Conclusions:
- Preschool children in full-day childcare centers typically nap when opportunities are provided.
- Napping is associated with reduced nighttime sleep duration in this age group.
- Further research is needed on sleep patterns in diverse childcare settings and their effects on health, growth, and development.
Objective:
To describe daytime naps and nighttime sleep-wake patterns in children attending full-day childcare centers.
Methods:
A descriptive cross-sectional study of sleep and daytime nap patterns in 52 healthy children 3-5 years of age. Sleep and nap data were obtained over 3 days and nights (Tuesday, Wednesday, and Thursday) with continuous ankle actigraphy recording on children attending two university-affiliated childcare centers.
Results:
Children averaged about 10 hr (610 min +/- 38 SD) of total sleep in 24 hr, as estimated by actigraphy. For the 41 children who napped, average nap duration was 75.8 min (+/-20 SD). Nocturnal sleep was less for children who napped (9.0 hr +/- 0.71 SD) compared to those who did not nap (9.8 hr +/- 0.53 SD).
Conclusions:
Findings indicate that the majority of 3-to-5-year-old children nap when given an opportunity. Preschool children's sleep and napping patterns on weekends and in other types of childcare environments warrant further research to assess health effects and impact on growth and development.
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