If you want to improve your sleep, it's a good idea to know your starting point. Determining how often you're waking up at night or if you're entering the deep sleep stages your body needs, is important information to have in the beginning so you can start making improvements. But…how can you track your sleep while you're, well, out cold?
Enter sleep trackers. They come in several forms, from wearable smart watches, to headbands that provide biofeedback, rings you slip on a finger, a device you slip under your sheet, or apps that use motion detection and microphones to detect when you're in the different stages of sleep.
With so many sleep trackers popularized these days, you might be wondering how they track your sleep. Although the technology behind these devices is more complicated than we'll get into today, there are several ways these devices track your sleep.