Associations of Various Nighttime Noise Exposure Indicators with Objective sleep Efficiency and Self-Reported sleep Quality: A Field Study

This study explored how nighttime noise, particularly from road traffic, affects sleep quality using actimetry (motion sensors) and noise measurements. It found that higher noise levels during the early evening and early morning significantly reduced sleep efficiency and increased sleep latency. Noise closer to wake-up time also increased feelings of sleepiness. The study emphasizes that aligning noise exposure with individual sleep patterns gives a better understanding of its impact. Poor sleep from noise can lead to long-term issues like cognitive decline and metabolic disorders, affecting brain health and overall performance.

To improve sleep and brain health, minimize noise exposure in the bedroom, particularly during early evening and early morning hours. Use soundproofing methods, white noise machines, or earplugs. This recommendation is based on observational field data, applicable broadly but influenced by individual noise sensitivity and specific living conditions.