0347 Screening Interventions in Peri-Sleep Thermodysregulation: A Scoping Review

Abstract Introduction Thermal dysregulation before and during sleep contributes to difficulty initiating sleep, reduced comfort, and impaired sleep quality. Recent work in peri-sleep thermoregulation includes developments in both screening tools and intervention approaches, including clinical assessments and consumer-oriented devices. Developments in thermoregulatory have been developed as both interventions and screening tools. However, screening methods and early-stage interventions used to identify or address peri-sleep thermoregulation challenges have not been clearly mapped. The goal of this study is to review human studies evaluating peri-sleep thermoregulatory interventions and to summarize the approaches, outcomes, and existing gaps via scoping review. Methods Following JBI and PRISMA-ScR guidance, we searched PubMed, PsycINFO, and Web of Science from inception to October 2025, supplemented by grey literature. After removal of 1,786 duplicates, 1,803 records underwent title and abstract screening, and 199 full texts were assessed. Studies were included if they involved adults (≥18 years), evaluated a peri-sleep thermoregulatory screening or intervention strategy, and reported at least one sleep and one thermoregulatory variable. Exclusion reasons included absence of temperature data, pharmacological-only interventions, manikin-only testing, non-peri-sleep contexts, and lack of sleep outcomes. Ninety-one studies were included for extraction. Results Interventions fell into the following categories: passive heating (e.g., warm baths, footbaths), passive cooling (e.g., cooling bedding), environmental modifications (e.g., ventilation, bedding changes), wearable sensors or smart textiles, and behavioral strategies designed to influence distal-proximal temperature gradients. Most studies used small samples of healthy adults in controlled laboratory or sleep-center environments. Improvements were most commonly reported for sleep onset latency, subjective sleep quality, and thermal comfort. Thermoregulatory outcomes and measurement methods varied widely across studies, often limiting comparability. Very few studies evaluated structured screening tools, or feasibility/acceptability of thermoregulatory interventions. Conclusion Peri-sleep thermoregulation research spans diverse strategies but lacks standardized screening methods, consistent outcome measurement, and evidence in real-world, climate-relevant contexts. Findings highlight a need for validated screening tools, increased applicability to individual living contexts, community-engaged methods and broader inclusion of vulnerable populations. Support (if any)