Evidence map›Paper›PMID 41236112›Full record

ArticleJournal of sleep research2026

Sleep and Maladaptive Personality Traits: A Twin Study.

Ziyu Ren, Jarrod M Ellingson, Christian Hopfer, Robert F Krueger, Zlatan Krizan, Kristian E Markon, Deniz S Ones, Zoë Panchal, J Megan Ross, Scott Vrieze and 2 more

Abstract readTwin Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of sleep research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

12 authors.

Ziyu RenDepartment of Psychology, University of Minnesota-Twin Cities, Minneapolis, Minnesota, USA.ORCID 0009-0005-4395-0481
Jarrod M EllingsonDepartment of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
Christian HopferDepartment of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
Robert F KruegerDepartment of Psychology, University of Minnesota-Twin Cities, Minneapolis, Minnesota, USA.
Zlatan KrizanDepartment of Psychology, Iowa State University, Ames, Iowa, USA.
Kristian E MarkonDepartment of Psychology, University of Minnesota-Twin Cities, Minneapolis, Minnesota, USA.
Deniz S OnesDepartment of Psychology, University of Minnesota-Twin Cities, Minneapolis, Minnesota, USA.
Zoë PanchalDepartment of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
J Megan RossDepartment of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.ORCID 0000-0003-4424-5301
Scott VriezeDepartment of Psychology, University of Minnesota-Twin Cities, Minneapolis, Minnesota, USA.
Stephanie M ZellersInstitute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland.
Matt McGueDepartment of Psychology, University of Minnesota-Twin Cities, Minneapolis, Minnesota, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sleep is essential for human functioning, but little attention has been paid to the interplay between sleep and maladaptive personality traits. We examined genetic and environmental associations between sleep and four maladaptive domains (MDs)-Negative Affectivity, Detachment, Disinhibition, and Psychoticism-within the framework of the DSM-5 Alternative Model of Personality Disorders (AMPD). We estimated phenotypic, genetic, and environmental variance and covariance using a twin study approach. Phenotypically, the four MDs showed small associations with sleep duration, medium associations with sleep efficiency, and large associations with sleep quality. A similar pattern was observed in genetic correlations, with Negative Affectivity and Detachment consistently showing the strongest associations. Multilevel Regression results based on the co-twin control design indicated that genetic factors only partially account for these relations. Whilst previous research has extensively focused on adaptive personality traits predicting sleep, our study highlights the importance of maladaptive traits as meaningful predictors of sleep health.

Indexed as

PersonalityPersonality DisordersSleepAdultFemaleHumansMaleMiddle AgedPhenotypeYoung AdultAMPDgenetic correlationmaladaptive personality traitssleepsleep qualitytwin study

Identifiers

PMID41236112
PMCPMC13193377

What OpenQuestion holds

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Registered trials

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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 OpenQuestion graph.