Sleep Quality

This observational behavioural study examines whether individual differences in sleep quality, sleep timing, and chronotype are associated with prosocial allocation decisions in adults. Participants will complete self-report sleep and circadian questionnaires, including the Pittsburgh Sleep Quality Index and the Munich Chronotype Questionnaire, a 7-day sleep diary, and a brief computer-based Dictator Game allocation task. The study does not involve sleep deprivation, sleep restriction, treatment, clinical diagnosis, medication, or medical devices. Participants will not be asked to change their sleep schedule. The Dictator Game decisions are hypothetical and do not affect participants' compensation. The study is intended to describe associations between naturally occurring sleep-related individual differences and behavioural allocation choices, not to diagnose or treat sleep or mental health conditions.

The goal of this clinical trial is to learn if ZenRest™ (Lotus Seed \& Rice Germ Extract Blend) can help improve sleep quality in menopausal women aged 40-65 with mild-to-moderate sleep complaints. The main questions it aims to answer are: * Does taking ZenRest™ daily improve subjective, participant-reported sleep quality compared to a placebo? * Does ZenRest™ improve objective sleep metrics, specifically sleep efficiency, when monitored via an Oura Ring wearable device? * Does the extract improve secondary sleep and lifestyle factors, such as insomnia severity, daytime sleepiness, and vitality? Researchers will compare ZenRest™ to a placebo (a look-alike capsule that contains no active ingredients) to see if the botanical blend has a measurable effect on sleep quality.

The goal of this observational study is to learn about the multidimensional determinants of functional health in women aged 45 to 60 years. The study will focus on the role of muscle strength, bone mineral density, body composition, physical activity, sleep quality, depressive symptoms, and menopause-related symptoms in functional health. The main questions it aims to answer are: 1. Does muscle strength contribute to functional health in women aged 45 to 60 years? 2. Does bone mineral density contribute to functional health in women aged 45 to 60 years? 3. How are physical activity, sleep quality, depressive symptoms, body composition, and menopause-related quality of life associated with functional health? Participants will: * Undergo handgrip strength measurement * Perform a 30-second chair stand test * Undergo bone mineral density and body composition assessment * Complete questionnaires about physical activity, sleep quality, depressive symptoms, menopausal symptoms, and quality of life * Provide demographic and clinical information

This randomized controlled trial aims to evaluate the effects of Autonomous Sensory Meridian Response (ASMR) and white noise on postoperative sleep quality in patients undergoing elective lower extremity surgery. Postoperative sleep disturbances are common after orthopedic surgery and may negatively affect pain perception, recovery, and overall patient outcomes. Participants will be randomly assigned to one of three groups: ASMR intervention, white noise intervention, or control group. Patients in the intervention groups will listen to standardized 30-minute audio recordings before sleep during the postoperative period, while the control group will receive routine care with headphones only. Sleep quality will be assessed using the Richards-Campbell Sleep Questionnaire (RCSQ). The study aims to determine which non-pharmacological intervention is more effective in improving postoperative sleep quality.

This prospective, non-profit study aims to better understand how occlusal splints (gnathological splints) affect daytime and nighttime bruxism (teeth grinding) and clenching in adults with chronic myofascial pain of the jaw muscles, a common form of temporomandibular disorder (TMD). Bruxism and clenching are repetitive or sustained jaw muscle activities that can contribute to jaw pain and dysfunction, and their accurate diagnosis requires instrumental assessment of muscle activity. In this study, muscle activity will be objectively measured using a portable device (dia-BRUXO®) worn for 24 hours, which records the electrical activity of the chewing muscles during both wakefulness and sleep. Adult patients with TMD who are prescribed a night-time occlusal splint will undergo three 24-hour recordings: before using the splint, two weeks after starting treatment, and two months later. During each recording, participants will also report their facial pain levels and awareness of clenching or grinding during the day. Their results will be compared with those of a matched control group without TMD. The main goal is to compare jaw muscle activity between patients and healthy individuals, while secondary goals include analyzing how long the muscles are active and how these patterns relate to symptoms. By combining objective measurements and patient-reported experiences, this study seeks to clarify how occlusal splints influence muscle activity and symptoms, helping clinicians improve diagnosis and treatment of bruxism and TMD.

The goal of this observational study is to learn how the Temple Massager System affects stress, emotional wellbeing, sleep, and quality of life in women aged 35 to 65. The Temple Massager System is a non-electric, drug-free hand-held device used for self-massage of the temple area. The system also includes a body lotion and an optional lavender aromatherapy. It is sold as a general wellness product. The main questions this study aims to answer are: Does daily use of the Temple Massager System lower self-reported stress and improve emotional wellbeing over 4 weeks? Does daily use improve self-reported sleep quality and overall quality of life? This is a single-arm observational study. There is no placebo or comparison group. Researchers will compare how participants feel before they start using the device to how they feel after 4 weeks of daily use. Participants will: Receive a Temple Massager System at no cost Complete a 1-week baseline period before using the device Use the device once a day for at least 5 minutes for 4 weeks Answer short daily questions about device use, headaches, and over-the-counter medication use Complete weekly check-in surveys about stress, mood, and sleep Complete longer surveys at the start and end of the study Keep the device after the study ends The study runs for 5 weeks per participant and takes place entirely from home through a secure app-based platform. No clinic visits are required.

The goal of this clinical trial is to assess the effectiveness of an intervention (combination of behavioural recommendations and technical measures) in reducing personal exposure to heat and air pollution and related health effects in pregnant women. The main questions it aims to answer are: * Does the intervention (combination of behavioral recommendations for heat mitigation) reduce personal ambient temperature exposure, measured using a wearable device (iButton)? * Does the intervention (combination of behavioral recommendations for air pollution mitigation and use of indoor air cleaners) reduce indoor exposure to air pollution, measured using indoor air quality sensors (Purple Air)? * Does the intervention (combination of behavioral recommendations for heat mitigation) reduce sleep difficulties experienced by pregnant women, measured using the Pittsburgh Sleep Quality Index? Researchers will compare measurements between pregnant women carrying out their daily activities in the absence of intervention (control group), those carrying out their daily activities with behavioural recommendations (recommendation intervention group) and those carrying out their daily activities with both behavioural recommendations for heat mitigation and continuous use of indoor air cleaners in their house (heat and air pollution mitigation intervention group) to see if changes in temperature exposure and sleep are different between intervention groups. Participants will: * Wear the wearable devise for continuous personal ambient temperature monitoring (ibutton) daily for a period of three months * Have their core temperature measured using an eCelsius medical capsule in three repeated assessments * Complete the Pittsburgh Sleep Quality Index questionnaire in three repeated assessments * Provide samples of urine and blood biomarkers in three repeated assessments.

Delirium affects up to 83% of mechanically ventilated patients in the Intensive Care Unit (ICU), often leading to longer hospital stays and long-term memory or cognitive problems. While standard care protocols (such as the ABCDEF bundle) exist, they are often difficult to implement fully due to their complexity and the heavy workload on nursing staff. To address these challenges, this study introduces a 'Precision Nursing' approach by integrating Artificial Intelligence (AI) and Virtual Reality (VR). We will implement an AI-driven system to assist nurses in making personalized care decisions more efficiently. Additionally, interactive VR technology will be used to stimulate patients' cognitive function and encourage early mobility. Our goal is to reduce the clinical burden on healthcare providers while significantly improving recovery outcomes for ICU patients.

This randomised controlled study aims to evaluate the effects of mindfulness meditation on sleep quality, perceived stress and symptoms levels ion hemodialysis patients. Participants in the intervention group will receive a 4 week mindfulness meditation program in addition to routine care. Outcomes will be assessed before and after the intervention using validated measurement tools.

Increased distress levels and impaired sleep quality are known to exacerbate bruxism by enhancing masticatory muscle activity, leading to excessive and prolonged occlusal forces. These abnormal forces may result in occlusal trauma, which can compromise the adaptive capacity of the periodontal tissues by increasing tooth mobility, widening the periodontal ligament space, and accelerating alveolar bone loss, particularly in the presence of existing periodontal inflammation. Although occlusal trauma alone may not initiate periodontal disease, it can act as an important modifying factor in disease progression. Despite the recognized individual associations of distress, sleep quality, bruxism, and periodontal health, limited evidence exists regarding their combined impact on periodontal status among bruxers. Therefore, evaluating the influence of distress level, sleep quality, and occlusal trauma on periodontal status is essential to better understand disease progression and to facilitate comprehensive, multidisciplinary management strategies for individuals with bruxism.

This randomized, sham-controlled trial aims to evaluate the effects of self-administered acupressure on social jet lag, sleep patterns, and sleep quality in female health sciences students. Participants will be randomly assigned to either a self-acupressure intervention group or a sham self-acupressure control group. The intervention will be performed daily for 12 weeks. Outcomes will be assessed at baseline and at the end of the intervention period, with the primary outcome being the change in social jet lag. Secondary outcomes include changes in sleep quality, daytime sleepiness, and participant blinding assessment.

Childhood cancers affect approximately 400,000 children and adolescents worldwide each year. Although advances in treatment have significantly improved survival rates, children undergoing cancer treatment continue to experience a wide range of treatment-related symptoms and complications. Among these, fatigue and sleep disturbances are particularly common and may persist throughout treatment and survivorship, negatively affecting psychological well-being, cognitive functioning, and overall quality of life. Reduced physical activity during treatment is strongly associated with worsening fatigue, impaired sleep, and decreased quality of life in pediatric oncology patients. However, treatment side effects, prolonged hospitalization, infection risk, and lack of motivating play-based activities often limit children's participation in physical activity during treatment. Recent evidence suggests that physical activity interventions may help reduce fatigue and improve well-being in children with cancer, yet engaging and age-appropriate non-pharmacological interventions remain limited, especially for younger children. This pilot randomized controlled trial aims to evaluate the feasibility and potential effects of a robot-dog-assisted walking intervention on sleep quality, fatigue, and quality of life among children aged 2-7 years undergoing cancer treatment.

Ambient air temperatures in Fiji are increasing due to climate change. Solutions are needed to build heat resilience in communities and adapt. Sunlight-reflecting cool roof coatings may passively reduce indoor temperatures and energy use to protect home occupants from extreme heat. Occupants living in poor housing conditions in Fiji are susceptible to increased heat exposure. Heat exposure can instigate and worsen numerous physical, mental and social health conditions. The worst adverse health effects are experienced in communities that are least able to adapt to heat exposure. By reducing indoor temperatures, cool roof use can promote physical, mental and social wellbeing in household occupants. The long-term research goal of the investigators is to identify viable passive housing adaptation technologies with proven health benefits to reduce the burden of heat stress in communities affected by heat in Fiji. To meet this goal, the investigators will conduct a cluster-randomized controlled trial to establish the effects of cool roof use on health, indoor environment and economic outcomes in Tavua, Fiji.

The goal of this study is to determine whether a multimodal sleep pathway can enhance sleep quality in hospitalized patients with orthopedic trauma. It will also evaluate the effect of this pathway on opioid use and pain perception during recovery. The main study questions are: * Does the multimodal sleep pathway improve sleep quality and duration? * Does the pathway reduce the amount of opioids patients use during hospitalization? * Does improved sleep reduce pain interference with daily activities? Researchers will compare the multimodal sleep pathway to standard postoperative care to see if the pathway helps patients sleep better and rely less on opioids. Participants will: * Receive either the multimodal sleep pathway (zolpidem, melatonin, and sleep hygiene education) or standard care * Wear a wrist-worn actigraphy device to track sleep during their hospital stay * Complete daily questionnaires about sleep quality and pain

The trial is a double-blind, placebo-controlled crossover design. In a randomized order, 20 participants undergo one control and two experimental sessions separated by a 1-week wash out period. During the no exercise/rest session, participants' sleep is monitored via polysomnography following a rest day. During the training sessions participants' sleep is monitored following a high intensity interval training (HIIT) in the late evening (finishing 1h prior to bedtime). During these sessions participants receive 2x 200mg CBD or placebo in a randomized order.

This observational cross-sectional study aims to examine the association between sleep quality and cognitive functions in healthy young adults. Subjective sleep quality will be assessed using the Pittsburgh Sleep Quality Index, and objective sleep parameters will be collected using a wearable device over five consecutive days. Cognitive functions will be evaluated at a single assessment session using standardized neuropsychological tests, including measures of attention, executive functions, and verbal memory. The study seeks to explore relationships between subjective and objective sleep measures and cognitive performance. Findings from this study may contribute to a better understanding of how sleep quality is associated with cognitive functioning in healthy young adults.

Trial title: Effectiveness of Electrical Vestibular Nerve Stimulation in the Improvement of Sleep in Patients with Visual Impairment. This pilot clinical trial is testing whether a device called VeNS (vestibular nerve stimulation) can safely and effectively improve sleep in adults who are visually impaired. The study will compare the active VeNS device to a sham (inactive) device. Participants will use the device under supervision for 30 minutes a day over 4 weeks, followed by a 4-week observation period. Researchers will assess sleep improvements, safety, and how acceptable and easy the treatment is for participants. Allocation: Randomized to either active device or control device usage. Endpoint classification: Efficacy Study Intervention Model: Parallel Assignment in 1:1 active to control allocation Sample size: The aim is to recruit a total of up to 60 participants. The study will last 8 weeks in total for each subject.

This observational study aims to examine developmental status, sensory processing, and sleep quality in preschool children aged 3 to 6 years across different caregiving models. Children raised primarily by first-degree relatives, second-degree relatives, caregivers, or in daycare settings will be compared. Data will be collected using the Denver II Developmental Screening Test, the Dunn Sensory Profile, and the Tayside Children's Sleep Questionnaire. The study will also evaluate the relationships among developmental status, sensory processing, and sleep quality, and explore whether caregiving model is associated with differences in these outcomes.

Time-restricted Eating (TRE) is a dietary approach that limits food intake to 4 - 12-hour windows without intentionally altering diet quality. TRE has several benefits including modest reductions in body weight and fat mass, improved glucose control, and reduced inflammatory markers. While research supports the metabolic and weight related benefits of TRE, there is limited evidence of its effects on physical activity (PA), sedentary behavior (SB) and sleep - the core components of 24-hour Activity Cycle (24-HAC), which is a holistic framework that integrates the three health-related activities. TRE research has largely focused on clinical populations, leaving its feasibility and adherence in healthy younger adults understudied. Within this group, college students' misaligned circadian rhythms and unpredictable schedules may make adherence to TRE challenging, highlighting the need for research on its practicality in this group. These outcomes are also particularly important to investigate in women, considering that SB is more prevalent among college-aged women (69%) compared to men (46%). To address these issues, we will conduct a three-week intervention to study the effects of TRE on the 24-HAC outcomes. College aged women will be screened and enrolled, then assigned to either a control or TRE group. Participants in the TRE group will self-select the timing of their 8-hour eating window which they will maintain throughout the study (with compliance on at least six days per week needed to be considered adherent). The control group will receive a basic nutrition education at the start of the study and will have no restriction on eating times. 24 HAC behaviors will be measured continuously for one-week of baseline measurement and throughout the intervention by wrist-worn ActiGraph GT9X monitors. Participants will also record the timing of their first and last meal each day and receive periodic reminders to report their hunger and satiety ratings using visual analog scales.

Using a 2-arm, RCT approach, the primary goal of the study is to evaluate the feasibility and preliminary efficacy of Inspiratory Muscle Strength Training (IMST) as a non-pharmacologic intervention to reduce cardiovascular and cognitive risks in older adults. Next, investigators will examine secondary effects of IMST on mood, sleep quality, systemic inflammation, and physical/motor function. Finally, investigators will assess participant adherence and acceptability ratings of using an 8-week home-based IMST protocol in a diverse older adult sample.

Purpose: The purpose of this clinical trial is to evaluate the efficacy and safety of Limosilactobacillus reuteri LM1063 on improving sleep health in healthy adults. Based on the microbiota-gut-brain axis, this study aims to scientifically analyze whether the supplementation of this specific probiotic strain can enhance sleep quality. Methodology: This is a randomized, double-blind, placebo-controlled, single-center clinical trial. A total of 80 participants (40 in the test group and 40 in the control group) will be enrolled. Participants in the test group will consume 500 mg of L. reuteri LM1063 (1.0 x 10\^10 CFU/day) once daily for 8 weeks, while the control group will receive a placebo. Key Evaluations: To assess sleep improvement, various parameters will be measured before and after the 8-week intake period: * Primary Outcomes: Polysomnography (PSG) measures including sleep efficiency (SE), sleep latency (SL), total sleep time (TST), wake after sleep onset (WASO), and delta power; and the Pittsburgh Sleep Quality Index (PSQI). * Secondary Outcomes: Various sleep and stress-related scales (SSS, ESS, PSS, RSQ-W, FSS) and blood biomarkers such as melatonin, GABA, and serotonin levels. * Safety: Monitored through adverse events, vital signs, and clinical laboratory tests.

The goal of this clinical trial is to study whether a Cognitive Behavioural Therapy for Insomnia (CBT-I) group led by laypersons serves as an effective tool for alleviating insomnia in older Chinese adults in Hong Kong. The main questions it aims to answer are: 1) Can the group improve subjective sleep quality? 2) What is the feasibility and acceptability of the group? Researchers will compare the intervention group with a control group. Participants will either join the intervention group or receive a self-help booklet, depending on their assignment. Both groups will complete two questionnaires over a four-week period: Baseline and Week-4 data.

This study aims to examine the effect of a social media diet intervention on loneliness, fear of missing out (FoMO), and sleep quality among university students. Excessive social media use has been associated with several negative psychological outcomes, including increased loneliness, heightened FoMO, and poor sleep quality. In this randomized controlled trial, university students will be randomly assigned to either an experimental group or a control group. Participants in the experimental group will follow a social media diet intervention that involves limiting daily social media use for a specified period, while participants in the control group will continue their usual social media use without restrictions. Loneliness, FoMO, and sleep quality will be measured at baseline and after the intervention using validated scales. The findings of this study are expected to provide evidence on whether reducing social media use can improve psychological well-being and sleep quality among university students.

Ambient air temperatures in Mexico have broken record highs in 2024. Solutions are needed to build heat resilience in communities and adapt to increasing heat from climate change. Sunlight-reflecting cool roof coatings may passively reduce indoor temperatures and energy use to protect home occupants from extreme heat. Occupants living in poor housing conditions in the northern zone of Mexico are susceptible to increased heat exposure. Heat exposure can instigate and worsen numerous physical, mental and social health conditions. The worst adverse health effects are experienced in communities that are least able to adapt to heat exposure. By reducing indoor temperatures, cool roof use can promote physical, mental and social wellbeing in household occupants. The long-term research goal of the investigators is to identify viable passive housing adaptation technologies with proven health benefits to reduce the burden of heat stress in communities affected by heat in Mexico. To meet this goal, the investigators will conduct a cluster-randomized controlled trial to establish the effects of cool roof use on health, indoor environment and economic outcomes in Colima, Mexico.

The aim of our study is to determine the relationship between disease severity and sleep quality in CTS patients and to compare the findings with healthy controls.