Quick Summary
Fitbit has updated its sleep tracking technology, making it more sensitive to brief awakenings.
The improvements were revealed in a community blog post, and offer a more "accurate reflection of your night's rest".
Sleep tracking is a feature pretty much every fitness tracker and smartwatch offers these days. Some are better than others, offering more data and deeper insights, but all will give you a rough idea of how well you slept and more often than not, the time you spent in each stage of sleep: light, REM and deep.
