The sleep Foundation article examines how environmental noise affects sleep quality and its subsequent impact on brain health and cognitive performance. Exposure to noise during sleep can lead to frequent awakenings and alterations in sleep architecture, resulting in daytime sleepiness, irritability, and diminished mental health. Chronic exposure to nighttime noise is associated with long-term health issues, including high blood pressure, heart disease, weight gain, type 2 diabetes, and certain cancers. To mitigate these effects, the article suggests minimizing nighttime noise through strategies like using earplugs, white noise machines, or soundproofing measures. Improving sleep quality is crucial for maintaining cognitive functions such as attention, memory, and executive function. The recommendations are based on scientific studies highlighting the importance of a quiet sleep environment for overall health and cognitive well-being.