Sleeping pattern of kindergartners and nursery school children: function of daytime nap

Kazuhiko Fukuda1, Yukine Sakashita

  • 1Department of Educational Psychology, Faculty of Education, Fukushima University, Japan. kfukuda@educ.fukushima-u.ac.jp

Insights

Afternoon naps in young children decrease with age and may delay nighttime sleep onset. This study examined children's sleep patterns and the impact of naps.

Area of Science:

  • Child development
  • Sleep science
  • Pediatric health

Background:

  • Childhood sleep patterns are crucial for development.
  • Afternoon naps are common in Japanese nursery schools.
  • Understanding nap function is important for pediatric sleep health.

Purpose of the Study:

  • Investigate the sleeping patterns of children aged 3-6 years.
  • Examine the function of afternoon naps in compensating for nighttime sleep insufficiency.
  • Determine if afternoon naps delay subsequent nighttime sleep onset.

Main Methods:

  • A questionnaire was administered to parents of 441 children (229 boys, 212 girls) aged 3-6.
  • Sleep patterns, including nighttime sleep and daytime naps, were analyzed.
  • Sleep duration and onset time were compared on days with and without afternoon naps.

Main Results:

  • Daytime naps significantly decreased and nearly disappeared by age 6.
  • Nursery school children had shorter nighttime sleep and later bedtimes than kindergartners.
  • Afternoon naps were found to delay nighttime sleep onset but were not a result of sleep deficiency.

Conclusions:

  • Childhood daytime napping habits decline significantly with age.
  • Afternoon naps may negatively impact nighttime sleep onset timing.
  • Further research is needed to optimize napping schedules for young children.

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