Public research record
Sleep Difficulties, Sleep Duration, and Sleeping Place in Early Childhood: A Longitudinal Study on Stability and Inter-Relations from 1 to 5 Years.
Pediatric reports · 2026
- DOI 10.3390/pediatric18030068
- PMID 42201201
- PMCID PMC13214682
Study snapshot
What this research can tell you
- What is this?
- An indexed scholarly work. The study design is not available in this public record.
- Who did it?
- Poulain T, Ludwig J, Grafe N, et al.
- What did they study?
- Population details are not available in this public record.
- How should I read it?
- FamilyPhD does not assign a strength rating without enough structured study detail.
What was found
The structured finding summary is not available. The study abstract is shown below.
Limitations
Structured limitations are not available in this public record. Absence here does not mean the study has no limitations.
Where FamilyPhD has used it
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From the publication record
Study abstract
The abstract is publication text, not a FamilyPhD recommendation.
Methods
Data were collected from 2018 to 2021 (t1) and from 2021 to 2024 (t2) in the LIFE Child cohort study conducted in Leipzig, Germany. Parents completed the Brief Infant Sleep Questionnaire at t1 and the Child Sleep Habits Questionnaire at t2. Associations between sleep characteristics at t1 and t2 were estimated using linear and logistic regression models. All associations were adjusted for child sex, age at t2, and maternal education.
Results
The analyses showed significant associations between shorter sleep durations, later sleep onset times, more frequent nightly awakenings and bed sharing and room sharing at t1 and more sleep difficulties at t2. A shorter sleep duration at t2 was predicted by shorter sleep and more parent-perceived sleep difficulties at t1. Bed sharing and room sharing at t1 were significantly associated with a lower probability of sleeping alone at t2.
Conclusions
These results indicate that sleep duration, sleep difficulties, and sleeping places are already stable in early childhood.
