Claims

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 · associational r2 · 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

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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