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Continuity and change in infants' sleep from 8 to 14 months: a longitudinal actigraphy study

Anat Scher1

  • 1University of Haifa, Counseling and Human Development, Mount Carmel, 31905 Haifa, Israel. anats@edu.haifa.ac.il

Infant Behavior & Development
|September 26, 2012
PubMed

Insights

Sleep schedules remained stable in infants from 8 to 14 months, but sleep consolidation continued. Around 12 months, sleep disruption patterns shifted, highlighting the need for longitudinal infant sleep studies.

Area of Science:

  • Developmental Psychology
  • Pediatric Sleep Medicine
  • Infant Behavior

Background:

  • Infancy is a critical period for sleep development.
  • Understanding sleep-wake characteristics is crucial for infant well-being.
  • Longitudinal data on infant sleep patterns are limited.

Purpose of the Study:

  • To examine changes and stability in infant sleep-wake characteristics.
  • To investigate sleep consolidation trends during late infancy.
  • To identify specific age-related patterns in sleep disruption.

Main Methods:

  • Actigraphy was used to monitor sleep in 34 healthy infants.
  • Sleep was assessed at 8, 10, 12, and 14 months of age.
  • Analysis focused on sleep schedules, consolidation, and disruption.

Main Results:

  • Infant sleep schedules showed no significant changes between 8 and 14 months.
  • Sleep consolidation progressively improved throughout the study period.
  • At 12 months, sleep disruption was independent of prior or subsequent night waking frequency.

Conclusions:

  • Infant sleep schedules are relatively stable in late infancy.
  • Sleep consolidation is an ongoing developmental process during this period.
  • The 12-month mark presents a unique transition in sleep disruption patterns, warranting further investigation.

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