

Sleep and Biological Rhythms
ISSN 1446-9235SpringerJapan
ScopusMEDLINEEmbasePMCSCImagoJIFMatched via identifier
Journal overview
Journal identity
Titles
Sleep and Biological Rhythms
Sleep Biol. Rhythms (abbreviated)
Sleep Biol Rhythms (abbreviated)
Sleep and Biological Rhythms SPRINGER JAPAN KK
Key identifiers
ISSN
1446-9235
1446-9235
eISSN
1479-8425
NLM ID
101199488
Publisher / basic metadata
Indexing & coverage
Current indexing summary
Scopus
Currently indexedScopus's Sources record lists this journal as active.
Indexing history
Coverage
2003–2026
Indexing services (MEDLINE, Embase)
MEDLINEUnknownEmbaseListed
Embase's Active journals record lists this journal as active.
Bibliographic inclusion (PubMed)
Not availableFull-text availability (PMC — not an indexing service)
PMCCoverage available
Metrics
| Metric | Year | Value | Quartile | Rank | Source |
|---|---|---|---|---|---|
| JIF | 2025 | 1.3 | Q4 | 11740 | JCR Impact Factor List 2025 — supplied dataset |
SCImago Journal Rank (SJR) — 2025
Source: SCImago Journal & Country Rank — 2025 dataset. SJR is a metric published by SCImago, presented here as reported.
SJR
0.587
Best Quartile
Q3
H-index
44
Subject categories
- Neurology — Q3
- Neuropsychology and Physiological Psychology — Q3
- Physiology — Q3
- Physiology (medical) — Q3
More metrics
Coverage
2003–2026
Country
Japan
Region
Asiatic Region
Publisher
Springer
Open Access
No
Open Access (Diamond)
No
Total documents (current year)
59
Total documents (3 years)
195
Total references
1810
Total citations (3 years)
364
Citable documents (3 years)
163
Citations per document (2 years)
1.68
References per document
30.68
Source details
Match confidence
Confirmed — two independent ISSNs agree
Matched via ISSN(s)
1446-9235, 1479-8425
SCImago Source ID
130153
SCImago Rank (across all SCImago source types)
10091
Publication activity
Publication activity
SCImago
2025
59 observed publications
Latest publication activity observed
2025
Current-year activity
Recent publication activity observed
Evidence sources: SCImago. SCImago's count is a source-reported aggregate figure; Crossref/OpenAlex/PubMed counts are distinct article records JCF Labs observed via each provider's own free API — none is guaranteed to be that journal's complete output for the year, and providers may disagree (this is expected, not an error). See this journal's own source evidence above for full context.
Subjects & categories
Subjects / categories
Subject area (SCImago)
MeSH (PubMed)
Not available
Coverage / history
Scopus:2003-2026
PMC:v.20(1) 2022 – v.24(3) 2026