Older adolescents show high night-to-night variability in free-living sleep duration, which may obscure sleep-cognition associations¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? Intra-individual standard deviation in nightly sleep duration was 1.2 ± 0.7 h and in rest duration 1.4 ± 0.8 h over the week. → Stefansdottir 2020
Evidence¶
Stefansdottir 2020¶
Stefansdottir, R., Gundersen, H., Rognvaldsdottir, V., Lundervold, A. S., Gestsdottir, S., Gudmundsdottir, S. L., Chen, K. Y., Brychta, R. J. & Johannsson, E. (2020). Association between free-living sleep and memory and attention in healthy adolescents. Scientific Reports 10:16877. https://doi.org/10.1038/s41598-020-73774-x
q3 · i? · associational · r2
Descriptive actigraphy statistics from the week of monitoring in 160 adolescents; the authors interpret that "compensatory bouts of shorter and longer sleep over the week may obscure associations between sleep duration and working memory".
"Intra-individual nightly variation (i.e. standard deviation over all valid nights23,25) in sleep (1.2 ± 0.7 h) and rest durations (1.4 ± 0.8 h) over the week was also quite high"
Discussion¶
Related Claims¶
- Weekly average sleep measures show no association with working memory performance in older adolescents — related
- Elementary school children show substantial day-to-day within-person fluctuations in sleep quality, time in bed, daytime tiredness, and working memory performance — related
- Adolescents with 7 hours or less total rest time show longer 3-back response times, both acutely and averaged over the week — related
- Free-living sleep measures show no association with visual attention task performance in older adolescents — related
- The association between sleep duration and school performance is nonlinear (p = 0.04) in generalized additive models — related
- Sleep and consolidation support semantic memory development, suggesting delayed school start times may benefit memory — related
- Shorter time in bed the night before testing is associated with slower 3-back response times in older adolescents — related
- Sleep the night before cognitive testing resembles weekly averages except for an earlier mid-sleep time — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
night-to-night-sleep-variability-adolescents |
title |
Older adolescents show high night-to-night variability in free-living sleep duration, which may obscure sleep-cognition associations |
description |
Older adolescents show high night-to-night variability in free-living sleep duration, which may obscure sleep-cognition associations |
status |
review |
evidence_strength |
weak |
newest_evidence |
2020 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — stefansdottir-2020 |
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