A device categorized as a sleep aid or relaxation tool generates auditory stimuli. These sounds range from nature-inspired noises like rain or ocean waves to white noise and ambient melodies. A typical example features multiple sound options, adjustable volume, and a timer for automated shut-off. These devices are often compact and portable, suitable for diverse environments.
Promoting relaxation and sleep is a key function of these devices. The gentle, consistent sounds can mask disruptive noises, creating a more peaceful atmosphere. This can be particularly beneficial in noisy environments or for individuals sensitive to sound. Historically, the use of sound for relaxation and sleep dates back centuries; however, modern technology has miniaturized and refined these tools, making them widely accessible. Improved sleep quality, reduced stress, and enhanced focus are potential benefits.