ArticleBasic and clinical andrology2020
Associations of bedtime, sleep duration, and sleep quality with semen quality in males seeking fertility treatment: a preliminary study.
Article in Basic and clinical andrology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.
What it found
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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.
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.
Who cites it
16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.
- Targeting Modifiable Risks: Molecular Mechanisms and Population Burden of Lifestyle Factors on Male Genitourinary Health.International journal of molecular sciences · 2025Pooled it
- Relationship Between Sleep Disturbances and In Vitro Fertilization Outcomes in Infertile Women: A Systematic Review and Meta-Analysis.Brain and behavior · 2025Pooled it
- Effects of physical activity and sleep duration on fertility: A systematic review and meta-analysis based on prospective cohort studies.Frontiers in public health · 2022Pooled it
- Relationship between healthy lifestyle score and infertility in Iranian men: a population-based case-control study.Reproductive biology and endocrinology : RB&E · 2025Article
- Association of male sleep quality with semen parameters and pregnancy outcomes in infertile couple.Basic and clinical andrology · 2025Article
- Association of sleep traits with male fertility: a two-sample Mendelian randomization study.Frontiers in genetics · 2024Article
- Association of diet and lifestyle factors with semen quality in male partners of Chinese couples preparing for pregnancy.Reproductive health · 2023Article
- Sleep and obstructive sleep apnea in women with infertility.Sleep & breathing = Schlaf & Atmung · 2023Article
- Evaluation of semen DNA integrity and related parameters with COVID-19 infection: a prospective cohort study.Virology journal · 2023Article
- Self-reported sleep quality and oligo/astheno/teratozoospermia among men attending an infertility clinic: a longitudinal study.Sleep & breathing = Schlaf & Atmung · 2023Article
- Impaired Human Sexual and Erectile Function Affecting Semen Quality, in Obstructive Sleep Apnea: A Pilot Study.Journal of personalized medicine · 2022Article
- Short total sleep duration and poor sleep quality might be associated with asthenozoospermia risk: A case-control study.Frontiers in physiology · 2022Article
- The potential impacts of circadian rhythm disturbances on male fertility.Frontiers in endocrinology · 2022Review
- The Gender Gap in the Diagnostic-Therapeutic Journey of the Infertile Couple.International journal of environmental research and public health · 2021Review
- Review
- Impact of Circadian Desynchrony on Spermatogenesis: A Mini Review.Frontiers in endocrinology · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPoor sleep has been linked to a number of adverse health outcomes. Recent studies suggest that late bedtimes, short or long sleep durations, and poor sleep quality may impair semen quality. No study has previously explored all three factors in relation to semen quality.
resultsOne hundred and four men and their partners treated at three fertility clinics in Denmark between 2010 and 2012 completed an online-version of the Pittsburgh Sleep Quality Index (PSQI). The results of the semen analyses conducted at the fertility clinics were self-reported and categorised as normal or reduced.Early bedtime (< 10:30 PM) was more often associated with normal semen quality compared with both regular (10:30 PM-11:29 PM) and late (≥11:30 PM) bedtime (OR: 2.75, 95%CI: 1.1-7.1,
conclusionEarly bedtimes (< 10:30 PM) and conventional sleep duration (7.5-7.99 h) were associated with self-reported normal semen quality. The role of subjective sleep quality remains uncertain.
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Registered trials
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.