Sleep and Biological Rhythms

ISSN 1446-9235 · Springer Science+Business Media · Japan · active 2003–2026

Metrics

Scimago quartile (2025)
Q3
Cites per paper (2y)
1.3
SJR
0.587
h-index
50

“Cites per paper” is a two-year cited-by rate computed from OpenAlex. It is not a Clarivate Journal Impact Factor — we neither compute nor license that metric (how the two differ). Citation rates differ enormously between fields, so compare within a discipline. What the other figures mean: journal quartile, SJR, h-index and article processing charge.

Data as of 8 November 2026 (venue index build).

Scimago Journal Rank 2025

In the Scimago Journal Rank 2025 edition, Sleep and Biological Rhythms is Q3 in all 4 of its subject categories.

Scimago 2025 quartile and rank of Sleep and Biological Rhythms in each subject category
Subject categoryQuartileRank in category
Neuropsychology and Physiological PsychologyQ3#42 of 78
Physiology (medical)Q3#70 of 117
NeurologyQ3#118 of 204
PhysiologyQ3#121 of 198
Cites per document (2 years, Scopus)
1.68
Documents indexed in 2025 (Scopus)
59

The quartile is the one Scimago prints for each category. Rank is the journal's position by SJR among the journals Scimago lists in that category (#1 is the highest); “—” means we hold no rank consistent with that quartile. The document count is what Scopus indexed that year, which can be lower than a journal's full output. Source: SCImago Journal Rank 2025 edition, from Scopus data (scimagojr.com, CC BY-NC).

Sleep and Biological Rhythms is Q3 in all 4 of its Scimago subject categories (2025 edition; best category Neuropsychology and Physiological Psychology: Q3, #42 of 78), with SJR 0.587 (Scimago) and an h-index of 50 (OpenAlex). Listed in Scopus, Web of Science, PubMed.

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Responding time

Submission to first decision
27 days (median)
Publisher-reported

Turnaround figures are indicative, not a guarantee: DOAJ values are self-reported by the journal (average weeks, submission to publication); library estimates are medians of the received/accepted dates printed in papers we hold. Editorial times vary by article type and season — confirm on the journal’s own site.

Indexing & access

Indexed in
ScopusWeb of SciencePubMed
Access status:
hybrid. Where this comes from publisher-level signals rather than works-level data it is a heuristic — confirm on the journal’s own site, especially regarding any article processing charge.

Official journal site →

Scope

sleepdisordersexperimentalcognitivepsychologywakefulnessneurosciencecircadianrhythmmelatoninendocrineautonomic

Frequently asked

Is Sleep and Biological Rhythms a predatory journal?

Our screening does not flag Sleep and Biological Rhythms. That is not a guarantee of quality — it means the venue is not on Beall's archive (frozen since 2017) and does not match our name-pattern heuristic. It is listed in Scopus, Web of Science, PubMed, which is a positive signal.

Is Sleep and Biological Rhythms indexed in Scopus or Web of Science?

Per our venue index, Sleep and Biological Rhythms appears in: Scopus, Web of Science, PubMed. Index membership changes over time — confirm on the index's own site before relying on it.

What is the impact factor of Sleep and Biological Rhythms?

Papers in Sleep and Biological Rhythms are cited about 1.3 times each within two years of publication, and Scimago places it in Q3, with an h-index of 50. Those are the open equivalents: the Clarivate Journal Impact Factor is a proprietary metric we neither compute nor license, so we show the two-year citation rate and Scimago quartile instead — they answer the same question of how heavily the journal is cited. A citation rate is a property of a field as much as of a journal.

What Scimago quartile is Sleep and Biological Rhythms (Q1, Q2, Q3, or Q4)?

In the Scimago Journal Rank 2025 edition, Sleep and Biological Rhythms is Q3 in all 4 of its subject categories. By category: Neuropsychology and Physiological Psychology: Q3, #42 of 78; Physiology (medical): Q3, #70 of 117; Neurology: Q3, #118 of 204; Physiology: Q3, #121 of 198. Quartiles split the journals in a subject category into four equal groups by SJR, so Q1 is the most-cited quarter and Q4 the least; Sleep and Biological Rhythms is cited about 1.3 times per paper over two years, with an h-index of 50.

What is the Web of Science (JCR) quartile of Sleep and Biological Rhythms?

The Web of Science quartile comes from Clarivate's Journal Citation Reports (JCR), a proprietary product we neither license nor compute — so we cannot state a JCR quartile for Sleep and Biological Rhythms. The open equivalent is its Scimago quartile, Q3, derived from Scopus citation data. Because JCR ranks against Web of Science and Scimago against Scopus, the two can differ, so check Clarivate's site directly if you need the JCR quartile specifically.

Is Sleep and Biological Rhythms open access?

Our index records its access status as "hybrid". Where this is derived from publisher-level signals rather than works-level data it is a heuristic, so confirm on the journal's own site — particularly if an article processing charge matters to you.

How long does Sleep and Biological Rhythms take to publish a paper?

Submission to first decision for Sleep and Biological Rhythms takes about 27 days (median) — Publisher-reported. Treat it as indicative rather than a guarantee: editorial times vary by article type, reviewer availability and season, and a self-reported figure is the journal's own. We do not hold a peer-review acceptance rate for Sleep and Biological Rhythms.

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