Evidence mapPaperPMID 42496244Full record

ReviewClocks & sleep2026

Effects of Heatwaves and Tropical Nights on Sleep in Middle-Aged and Older Adults: A Scoping Review.

Jelena Krčum, Neriman Ezgin, Nikola Šutulović, Nemanja Rajković, Emilija Djurić, Dušan Mladenović, Milena Vesković, Arif E Cetin, Aleksandra Rašić-Marković, Olivera Stanojlović and 1 more

Abstract readReview
In one paragraph

Review in Clocks & sleep, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Jelena KrčumFaculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.
Neriman EzginInstitute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0002-7016-2334
Nikola ŠutulovićInstitute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0002-9499-3247
Nemanja RajkovićInstitute of Biophysics, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0002-3845-3780
Emilija DjurićInstitute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0003-2375-7420
Dušan MladenovićInstitute of Pathophysiology "Ljubodrag Buba Mihailovic", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0002-8921-6232
Milena VeskovićInstitute of Pathophysiology "Ljubodrag Buba Mihailovic", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0002-7505-5466
Arif E CetinIzmir Biomedicine and Genome Center, Izmir 35340, Turkey.ORCID 0000-0002-0788-8108
Aleksandra Rašić-MarkovićInstitute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0003-1131-2328
Olivera StanojlovićInstitute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0001-5317-3827
Dragan HrnčićInstitute of Medical Physiology "Richard Burian", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.ORCID 0000-0003-0806-444X

Funding

Wellcome Trust 200110
6 · The paper itself

Abstract

Heatwaves and tropical nights are emerging as significant public health challenges under accelerating climate change, with middle-aged and older adults demonstrating heightened vulnerability. This scoping review maps the existing evidence on how nocturnal heat affects sleep in middle-aged and older adults aged 45 and above, synthesizing findings from experimental and observational studies published in English over the past decade. A comprehensive search of PubMed and Scopus, supplemented by reference screening, identified 31 relevant studies. Data on study design, population characteristics, heat exposure metrics, sleep outcomes, and interventions were charted and synthesized narratively due to methodological heterogeneity. Across studies, elevated nighttime temperatures consistently reduced total sleep time and sleep efficiency, increased wake after sleep onset, and disrupted sleep architecture, particularly REM and N3 stages. Environmental, behavioral, and physiological interventions such as improved ventilation, targeted cooling strategies, and pre-sleep thermal management partially mitigated heat-related sleep disruption. Overall, the findings highlight gaps in standardized exposure metrics and harmonized sleep assessment, providing guidance for future research and public health strategies aimed at protecting sleep health in middle-aged and aging populations amid increasingly frequent extreme heat events.

Indexed as

heatwavesmiddle-aged adultsolder adultssleep qualitythermoregulationtropical nights

Identifiers

PMID42496244
PMCPMC13398121

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.