Sleep trackers are devices or apps designed to monitor your sleep patterns and quality. They can be worn on your wrist like a watch or placed under your mattress. By using sensors, they collect data on how long you sleep, how many times you wake up, and even the different stages of sleep, such as REM and deep sleep. This information helps you understand your sleep habits better. Many people use sleep trackers to improve their overall health and well-being. By analyzing the data, you can identify factors that affect your sleep, like stress or caffeine intake. With this knowledge, you can make changes to your routine, leading to more restful nights and energized days.