Sleep the night before cognitive testing resembles weekly averages except for an earlier mid-sleep time¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2025: baselines and conditions change
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? Paired comparisons showed no significant differences between the prior night's sleep parameters and weekly averages, except mid-sleep time, which was earlier before testing (04:19 ± 1.0 h vs. 04:48 ± 1.0 h, p < 0.001). → 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
Paired t-tests comparing the night prior to testing with weekly actigraphy averages; the later weekly mid-sleep was attributed to weekend nights, since "students in this cohort tend shift toward later sleep schedules on the weekend".
"With the exception of an earlier mid-sleep time (04:19 ± 1.0 h, p < 0.001), sleep parameters on the night prior to cognitive testing were not significantly different than the weekly averages"
Discussion¶
Related Claims¶
- Weekly average sleep measures show no association with working memory performance in older adolescents — related
- Adolescents with 7 hours or less total rest time show longer 3-back response times, both acutely and averaged over the week — related
- Shorter time in bed the night before testing is associated with slower 3-back response times in older adolescents — related
- Older adolescents show high night-to-night variability in free-living sleep duration, which may obscure sleep-cognition associations — related
- Free-living sleep measures show no association with visual attention task performance in older adolescents — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
acute-sleep-matches-weekly-averages |
title |
Sleep the night before cognitive testing resembles weekly averages except for an earlier mid-sleep time |
description |
Sleep the night before cognitive testing resembles weekly averages except for an earlier mid-sleep time |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2020 |
recheck_by |
2025 |
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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