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Published on: October 11, 2018
Inconsistent sleep schedules and daytime behavioral difficulties in school-aged children
Sarah N Biggs1, Kurt Lushington, Cameron J van den Heuvel
1Childrens Research Centre, Discipline of Paediatrics, University of Adelaide, King William Road, Adelaide 5000, Australia. sarah.biggs@monash.edu
Insights
Inconsistent sleep schedules and insufficient sleep duration in children are linked to behavioral difficulties. Stable sleep routines are crucial for healthy child development and daytime functioning.
Area of Science:
- Pediatric Sleep Science
- Child Behavioral Health
- Circadian Rhythms
Background:
- Current sleep recommendations for school-aged children emphasize duration (9-11 hours).
- Sleep schedule stability and routine are vital for circadian health and daytime functioning.
- Limited research exists on the impact of sleep schedule instability on child behavior.
Purpose of the Study:
- To investigate the association between sleep duration, sleep schedule instability, and behavioral difficulties in Australian children.
- To determine if inconsistent sleep/wake times contribute to behavioral problems.
Main Methods:
- A community sample of 1622 Australian children aged 5-10 years participated.
- Parent-report questionnaires assessed sleep/wake behavior and behavioral functioning (Strengths and Difficulties Questionnaire).
Main Results:
- Approximately 50% of children exhibited weekly bed and rise time variability exceeding 1 hour.
- Short sleep duration (<10 hours), long bedtime latency (>60 min), and significant sleep schedule variability (>60 min) increased the risk of behavioral difficulties.
Conclusions:
- Inconsistent sleep schedules are prevalent in children and associated with behavioral issues, similar to short sleep duration.
- Further research is recommended to develop evidence-based guidelines for sleep schedule stability in children.
Objectives:
Current recommendations for healthy sleep in school-aged children are predominantly focused on optimal sleep duration (9-11h). However, given the importance of routine for circadian health, the stability of sleep/wake schedules may also be important, especially for daytime behavioral functioning. We examined the relationship between short sleep duration, sleep schedule instability and behavioral difficulties in a community sample of Australian children.
Methods:
Children, aged 5-10 years (N=1622), without chronic health or psychological conditions, were recruited from primary schools in Adelaide, South Australia. A parent-report questionnaire was used to assess sleep/wake behavior. Behavioral functioning was assessed using the Strengths and Difficulties Questionnaire.
Results:
Most children met sleep duration recommendations with approximately 5% reporting <9h and 3% >12h. Weekly variability of bed and rise times >1h were reported in up to 50% of children. Multinomial regression analysis revealed sleep duration <10h, bedtime latency >60 min, and bed and rise time variability >60 min significantly increased the risk of scoring in the 95th percentile for behavioral sub-scales.
Conclusions:
Inconsistent sleep schedules were common and, similar to short sleep duration, were associated with behavioral difficulties. Considering the lack of study in this area, further research is needed for the development of new recommendations, education and sleep health messages.
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