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Clocks & Sleep, Volume 6, Issue 3

2024 September - 14 articles

Cover Story: Leveraging the power of wearable and contactless technologies, our study pioneers a novel approach to sleep quality (SQ) assessment by harnessing heart rate variability (HRV) and skin temperature metrics measured during wakefulness. Using machine learning models, we achieved a remarkable 83.4% classification accuracy in predicting SQ, as assessed by the Pittsburgh Sleep Quality Index. This multimodal approach not only surpasses existing methods but also offers a non-invasive, practical solution for real-time health monitoring, paving the way for enhanced ergonomic applications and improved interventions in sleep health. View this paper
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Articles (14)

  • Review
  • Open Access
4 Citations
4,602 Views
16 Pages

4 September 2024

Sleep disorders increase with age and are known risk factors for several mental and physical diseases. They also significantly contribute to a lower quality of life. Nonpharmaceutical approaches, such as cognitive behavioral therapy for insomnia, sle...

  • Article
  • Open Access
5 Citations
6,328 Views
18 Pages

The Impact of DAZZEON αSleep® Far-Infrared Blanket on Sleep, Blood Pressure, Vascular Health, Muscle Function, Inflammation, and Fatigue

  • Mon-Chien Lee,
  • Chin-Shan Ho,
  • Yi-Ju Hsu,
  • Nai-Wen Kan,
  • Chen-Yin Fei,
  • Hung-Jen Yang and
  • Chi-Chang Huang

4 September 2024

The application of far-infrared blankets has shown certain benefits in health promotion and therapy, such as improving blood circulation and alleviating muscle pain. However, the effects of such blankets on increasing deep sleep, reducing blood press...

  • Review
  • Open Access
8 Citations
5,845 Views
11 Pages

Sleep Quality and Medication Adherence in Older Adults: A Systematic Review

  • Leandro Amato,
  • Noemi Giannetta,
  • Sofia Taborri,
  • Sara Dionisi,
  • Nicolò Panattoni,
  • Emanuele Di Simone,
  • Aurora De Leo,
  • Gloria Liquori,
  • Giovanni Battista Orsi and
  • Marco Di Muzio
  • + 1 author

3 September 2024

Sleep quality significantly impacts individuals’ overall health, especially in older adults. Older adults often face comorbid conditions, polypharmacy (the intake of five or more medications per day), and medication non-adherence, which are com...

  • Article
  • Open Access
2 Citations
10,815 Views
20 Pages

A Comprehensive Assessment of Bedtime Routines and Strategies to Aid Sleep Onset in College Students: A Web-Based Survey

  • Debora Meneo,
  • Sara Curati,
  • Paolo Maria Russo,
  • Monica Martoni,
  • Francesca Gelfo and
  • Chiara Baglioni

College students often experience sleep–wake alterations. Different factors can contribute to insomnia symptoms in this population. The present study aims at investigating pre-sleep behaviours and strategies used to aid sleep onset in young col...

  • Review
  • Open Access
8 Citations
10,680 Views
22 Pages

Substance use disorder is a major global health concern, with a high prevalence among adolescents and young adults. The most common substances of abuse include alcohol, marijuana, cocaine, nicotine, and opiates. Evidence suggests that a mismatch betw...

  • Article
  • Open Access
1 Citations
3,076 Views
13 Pages

Violet Light Effects on the Circadian Rest–Activity Rhythm and the Visual System

  • Teresa Domínguez-Valdés,
  • Cristina Bonnin-Arias,
  • Cristina Alvarez-Peregrina,
  • Beatriz G. Galvez,
  • Miguel Angel Sanchez-Tena,
  • Francisco Germain,
  • Pedro de la Villa and
  • Celia Sánchez-Ramos

Background: Rooms illuminated by “black light” (<400 nm wavelength) has become popular, but there is not enough scientific evidence to support its implementation. This study aims to assess the effects of violet light (392 nm) on the ci...

  • Article
  • Open Access
5 Citations
12,729 Views
16 Pages

Effectiveness of Enriched Milk with Ashwagandha Extract and Tryptophan for Improving Subjective Sleep Quality in Adults with Sleep Problems: A Randomized Double-Blind Controlled Trial

  • Silvia Pérez-Piñero,
  • Juan Carlos Muñoz-Carrillo,
  • Jon Echepare-Taberna,
  • Macarena Muñoz-Cámara,
  • Cristina Herrera-Fernández,
  • Vicente Ávila-Gandía,
  • María Heres Fernández Ladreda,
  • Javier Menéndez Martínez and
  • Francisco Javier López-Román

A randomized, double-blind and controlled study was conducted to assess the effectiveness of the intake of 250 mL of lactose-free skimmed milk enriched with ashwagandha (Withania somnifera) alone or combined with tryptophan vs. non-enriched milk...

  • Article
  • Open Access
4,373 Views
15 Pages

The Impact of Lunch Timing on Nap Quality

  • Jennifer E. Fudge,
  • Emily T. Peterson,
  • Shae-Lynn M. Koe and
  • Hans C. Dringenberg

Purpose: Previous research has established that food intake is a biological regulator of the human sleep–wake cycle. As such, the timing of eating relative to sleep may influence the quality of sleep, including daytime naps. Here, we examine wh...

  • Article
  • Open Access
2 Citations
2,447 Views
13 Pages

Risk of Comorbid Insomnia Disorder Associated with Major Depression in Apneic Patients: A Cross-Sectional Study

  • Matthieu Hein,
  • Benjamin Wacquier,
  • Matteo Conenna,
  • Jean-Pol Lanquart and
  • Camille Point

Given the limitations of available studies, the objective of this study was to explore the role played by current and remitted major depression in the occurrence of comorbid insomnia disorder for apneic patients. Data from 1488 apneic patients were e...

  • Article
  • Open Access
2,345 Views
30 Pages

Generative Models for Periodicity Detection in Noisy Signals

  • Ezekiel Barnett,
  • Olga Kaiser,
  • Jonathan Masci,
  • Ernst C. Wit and
  • Stephany Fulda

We present the Gaussian Mixture Periodicity Detection Algorithm (GMPDA), a novel method for detecting periodicity in the binary time series of event onsets. The GMPDA addresses the periodicity detection problem by inferring parameters of a generative...

  • Article
  • Open Access
4 Citations
3,065 Views
21 Pages

Combined Effects of Moderate Hypoxia and Sleep Restriction on Mental Workload

  • Anaïs Pontiggia,
  • Pierre Fabries,
  • Vincent Beauchamps,
  • Michael Quiquempoix,
  • Olivier Nespoulous,
  • Clémentine Jacques,
  • Mathias Guillard,
  • Pascal Van Beers,
  • Haïk Ayounts and
  • Fabien Sauvet
  • + 3 authors

Aircraft pilots face a high mental workload (MW) under environmental constraints induced by high altitude and sometimes sleep restriction (SR). Our aim was to assess the combined effects of hypoxia and sleep restriction on cognitive and physiological...

  • Article
  • Open Access
6 Citations
7,055 Views
16 Pages

Predicting Sleep Quality through Biofeedback: A Machine Learning Approach Using Heart Rate Variability and Skin Temperature

  • Andrea Di Credico,
  • David Perpetuini,
  • Pascal Izzicupo,
  • Giulia Gaggi,
  • Nicola Mammarella,
  • Alberto Di Domenico,
  • Rocco Palumbo,
  • Pasquale La Malva,
  • Daniela Cardone and
  • Angela Di Baldassarre
  • + 2 authors

Sleep quality (SQ) is a crucial aspect of overall health. Poor sleep quality may cause cognitive impairment, mood disturbances, and an increased risk of chronic diseases. Therefore, assessing sleep quality helps identify individuals at risk and devel...

  • Article
  • Open Access
4 Citations
6,095 Views
10 Pages

Chronotype reflects the morningness–eveningness preference over a 24 h period. Significant data indicate meaningful differences between evening types (ETs) and morning types (MTs) in behavior, personality traits, health, and well-being. This st...

  • Article
  • Open Access
3 Citations
6,515 Views
21 Pages

The Impact of Sleep on Haematological Parameters in Firefighters

  • Sara Alves,
  • Francisca Silva,
  • Filipa Esteves,
  • Solange Costa,
  • Klara Slezakova,
  • Maria Alves,
  • Maria Pereira,
  • João Teixeira,
  • Simone Morais and
  • Josiana Vaz
  • + 2 authors

Sleep is a vital process that impacts biological functions such as cell renewal, bone regeneration, and immune system support. Disrupted sleep can interrupt erythropoiesis, leading to fewer red blood cells, reduced haemoglobin concentration, and decr...

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Clocks & Sleep - ISSN 2624-5175