Certified Polysomnographic Technician (CPSGT) 2025 – 400 Free Practice Questions to Pass the Exam

Environmental factors can significantly influence sleep quality, with noise and light being prominent disruptors. When an individual is exposed to excessive noise, such as traffic, loud conversations, or other disturbances, it can lead to fragmented sleep, making it difficult to reach or maintain the deeper stages of sleep necessary for restorative rest. Furthermore, exposure to light, particularly artificial light from screens or street lamps, can interfere with the body's natural circadian rhythms by suppressing melatonin production, which is crucial for signaling that it is time to sleep. Disruptions from both noise and light can result in increased awakenings during the night, difficulty falling asleep, and overall poor sleep quality.

The other options, while they may contribute positively to sleep hygiene, do not directly address the significant immediate impact of environmental factors such as noise and light. Regular meal times, comfortable bedding, and consistent daily routines tend to promote better sleep health on a longer-term basis, but noise and light can create acute disturbances that degrade sleep quality regardless of these other factors.