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Published on: July 1, 2015
Sleep and Sensory Processing in Infants and Toddlers: A Cross-Sectional and Longitudinal Study
Katie Appleyard1, Elizabeth Schaughency2, Barry Taylor3
1Katie Appleyard, PhD, is Assistant Research Fellow, Department of Women's and Children's Health and Department of Psychology, University of Otago, Dunedin, Otago, New Zealand.
Insights
Sleep difficulties in toddlers are linked to sensory processing challenges, potentially emerging in infancy. Addressing sensory sensitivities may help improve sleep onset for sensitive children.
Area of Science:
- Developmental Psychology
- Pediatric Sleep Medicine
- Sensory Processing Research
Background:
- Children with sensory sensitivities often experience sleep difficulties.
- The emergence and prevalence of these sleep issues in the general population are not well-understood.
Purpose of the Study:
- To examine the relationship between sleep patterns and sensory processing in typically developing infants and toddlers.
- To investigate both cross-sectional and longitudinal connections.
Main Methods:
- An observational study involving 160 children from a larger trial.
- Parent-reported sleep data collected at 6 months, 1, 2, and 2.5 years.
- Sensory Processing Measure-Preschool questionnaire administered at 2.5 years; analyzed using multiple linear regression.
Main Results:
- Problematic sleep at 2.5 years correlated with social-relational skill deficits.
- Longer sleep onset times were associated with heightened visual and tactile sensitivities at 2.5 years.
- Longitudinal data indicated a link between longer sleep onset times and sensitive hearing from 6 months to 2.5 years.
Conclusions:
- A connection exists between sleep patterns and sensory processing issues in toddlers, which may begin in infancy.
- Healthcare providers should consider sensory processing when evaluating sleep problems in young children.
- Managing visual, tactile, and auditory stimuli may aid sleep onset for sensitive children.
Importance:
Typically developing children who are sensitive to sensory stimulation appear to have more sleep difficulties than children with average sensory sensitivities; however, at what age sleep difficulties emerge and whether they extend to children outside of sleep clinics are unclear.
Objective:
To investigate cross-sectional and longitudinal relationships between sleep and sensory processing in typically developing infants and toddlers.
Design:
Observational; cross-sectional and longitudinal.
Setting:
Community.
Participants:
Children (N = 160) enrolled in a larger four-armed randomized controlled trial of overweight prevention in infancy (40 randomly selected from each arm).
Outcomes And Measures:
Parent-reported sleep patterns at ages 6 mo, 1 yr, 2 yr, and 2.5 yr. Sensory Processing Measure-Preschool questionnaire covering five sensory systems and higher level functions: praxis and social participation at age 2.5 yr. Relationships between sleep and sensory variables were analyzed using multiple linear regression models.
Results:
More problematic sleep at age 2.5 yr was associated with more difficulties in social-relational skills (p < .001), a finding supported by the longitudinal data. Longer settling times were associated with higher vision (p = .036) and touch (p = .028) sensitivities at age 2.5 yr; in the longitudinal data (ages 6 mo-2.5 yr), longer settling times were associated with more sensitive hearing (p = .042).
Conclusions And Relevance:
Results support a link between sleep patterns and sensory processing difficulties in toddlers that, in some, can emerge in infancy. Practitioners should be alert to this association in young children presenting with sensory sensitivity or sleep challenges.
What This Article Adds:
Study findings illustrate that bedtime challenges in typically developing toddlers could be related to sensory processing. A possible way to assist more sensitive children in settling to sleep is to pay attention to visual, tactile, and auditory stimuli that potentially interfere with sleep onset.
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