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ABC News
ABC News
Health

Many of us are using fitness devices to track our sleep but could they be making our anxiety worse?

The question of how accurate sleep trackers are is more complicated than it may seem.  (Getty Images)

More people are taking sleep-tracking devices to bed than ever before.

Generally speaking, a sleep tracker measures the length and/or quality of your sleep, and they are increasingly being incorporated into popular fitness "wearables" such as Apple, Garmin and Fitbit watches.

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