# Association between indoor noise level at night and objective/subjective sleep quality in the older population: a cross-sectional study of the HEIJO-KYO cohort

> Research article (SLEEP, 2023) · cited 21× · AI/ML

**Wikidata**: [openalex:W4318332918](https://www.wikidata.org/wiki/openalex:W4318332918)  
**Source**: https://4ort.xyz/entity/association-between-indoor-noise-level-at-night-and-objective-subjective-sleep-quality-in-the-older-population-a-cross-s