Fitbit is adding deeper sleep tracking and guidance to its trackers

From CNET: Feeling fit isn't all about steps and calorie burn. A good night's sleep plays a critical role in your health and overall well being.

That's why Fitbit is adding new features to its trackers that provide more insight on your sleeping habits and guidance on how to improve them.

The health and wellness company on Monday announced two new sleeping tools that will be coming to its existing products.

The first, Sleep Stages, will utilize the optical heart-rate sensor to estimate how long you spend in light, deep and REM sleep cycles, as well as how frequently you wake up in the middle of the night. Sleep Stages will be available on the Fitbit Charge 2, Blaze and the new Alta HR.

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