A Sleep Tracker is a device or application designed to monitor and analyze sleep patterns. It typically records data such as sleep duration, quality, and stages of sleep, helping users understand their sleep habits. Many trackers use sensors to detect movement and heart rate, providing insights into how well a person sleeps. These tools can be beneficial for improving overall health and well-being. By identifying issues like insomnia or irregular sleep patterns, users can make informed changes to their routines. Some Sleep Trackers also offer features like sleep coaching and relaxation techniques to enhance sleep quality.