Tracking Sleep: Fitbit Flex's Guide

how to track sleep on fitbit flex

Fitbit's advanced sleep tools can help you get a better understanding of your sleep quality and patterns. The Fitbit Flex is always on, so it is easy to use the sleep tracker. To track your sleep, simply wear your tracker to bed. When your Flex syncs in the morning, you will be able to see your sleep stats and insights in the app. The data will show your sleep quality through your sleep stages, sleep score, and heart rate. This can help you understand your sleep and make improvements where needed.

Characteristics Values
How to track sleep Wear the Fitbit Flex tracker to bed
How to view sleep stats Check the dashboard in the morning
How to exit sleep mode Tap the tracker rapidly for 1-2 seconds
Sleep mode indicators Vibrate and flash five LED indicator lights
Sleep tracking accuracy Matches user's perceptions of sleep quality
Sleep tracking features Red lines for awake, light blue lines for restless
Additional sleep tools Set bedtime reminders, goals, and Smart Wake alarms

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How to wear your Fitbit Flex to bed

To wear your Fitbit Flex to bed, start by strapping it around your wrist firmly but not too tightly. Tap your Fitbit Flex rapidly for at least two seconds to enter sleep mode. You'll know you're in sleep mode when you see two blinking lights moving back and forth.

Now, you can go to sleep. It's important that you don't change anything on the tracker until it's time to wake up. In the morning, exit sleep mode by rapidly tapping the Flex for at least two seconds. The tracker will vibrate and display all five LED lights flashing three times before showing a spinning pattern. This means you've successfully exited sleep mode.

Your Fitbit Flex will automatically sync with your account when it gets within range of your computer's wireless USB sync dongle. Open the Fitbit application on your computer and log into your account dashboard to view your sleep data. You can also view your sleep stats on your Fitbit Alta's dashboard by turning your wrist towards the side that displays the time or by double-tapping the face of your device.

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How to sync your Fitbit Flex in the morning

To track your sleep with Fitbit Flex, simply wear your tracker to bed. When your Flex syncs in the morning, you'll be able to see last night's sleep stats on your dashboard. If your tracker is stuck in sleep mode, rapidly tap your Flex for one to two seconds to exit sleep mode.

Now, to sync your Fitbit Flex in the morning, make sure you have only one tracker paired to your account. If you're having trouble syncing, try restarting your tracker by plugging your charging cable into the USB port and inserting your tracker into the charging cable. Then, insert a paper clip into the small pinhole on the back of the charger and press on the pinhole for 3-4 seconds. Finally, take your tracker out of the charger and insert it back into the wristband.

Additionally, ensure that your Flex syncs through the Fitbit app and not directly through the Bluetooth on your phone. If your Fitbit is still not syncing, try restarting your device. If you're using an iPad, make sure that your device is compatible with the Fitbit app.

If you're still having issues, try updating the Fitbit app, then restart your phone and try to start the update again. If you're still unable to sync, you may need to reset your tracker.

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How to exit sleep mode on your Fitbit Flex

The Fitbit Flex is always on, so it is easy to use the sleep tracker. To track your sleep with Fitbit Flex, simply wear your tracker to bed. When your Flex syncs in the morning, you'll see last night's sleep stats on your dashboard. The Fitbit uses your sleeping heart rate and movement to measure your time spent in each sleep stage and give you a personalised Sleep Score. This shows how well you slept.

If your tracker is stuck in sleep mode, you can exit sleep mode by rapidly tapping your Flex for one to two seconds. Your tracker will vibrate and display all five LED indicator lights several times, then show a spinning light pattern.

You can also try restarting your tracker by following these steps:

  • Plug your charging cable into the USB port and insert your tracker into the charging cable.
  • Insert a paperclip into the small pinhole on the back of the charger.
  • Press on the pinhole for 3-4 seconds.
  • Take your tracker out of the charger and insert it back into the wristband.

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To view your sleep stats and trends on your Fitbit, you must first ensure that your Fitbit is set up to track your sleep. This means wearing your device to bed, with your Fitbit fastened snugly around your wrist so that the sensors make good contact with your skin. It cannot track your sleep if it is worn on a pendant or clip.

Once you have done this, your Fitbit will automatically detect when you are asleep and begin tracking your sleep activity. It does this by sensing when your body is completely relaxed and hasn't moved for about an hour. If your Fitbit has a heart rate monitor, it will also use this to develop a more accurate picture of your sleep cycle.

The next day, you can view your sleep data by syncing your Fitbit with the mobile app. Open the Fitbit app and tap the 'Today' tab, then select the 'Sleep' tile. Here, you will be able to see your sleep data, including hours slept, sleep score, sleep schedule, and time spent in each sleep stage. You can tap on the sleep card to see your stats over time, for several months or even a year.

If you are a Fitbit Premium subscriber, you will have access to more advanced features, such as a detailed monthly sleep profile that examines sleep phases, how often you move, and how much restorative sleep you get. You can also track long-term trends in your nightly breathing rate, heart rate variability, skin temperature, and oxygen saturation.

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How to compare your sleep stats to others

To compare your sleep stats to those of other people, you need to be a Fitbit Premium subscriber. This subscription costs $9.99/£7.99 per month, or $80/£79.99 per year. With a Premium subscription, you get a Sleep Profile reading that uses various sleep metrics to tell you about trends in your sleep patterns and how they compare to other people of your age and gender.

To track your sleep with Fitbit Flex, simply wear your tracker to bed. When your Flex syncs in the morning, you'll see last night's sleep stats on your dashboard. Your Fitbit device detects and records naps that are at least an hour long. Fitbit devices that track heart rate (except Charge HR and Surge) also track sleep stages.

If your device doesn’t track heart rate, you can still check your sleep pattern in the Fitbit app. Your sleep pattern includes your time spent awake, restless, and asleep. If your device detects excessive movement, enough that restful sleep won't be possible, your device records time spent awake.

To check your logged naps, tap the Sleep duration tile Other sleep. If your device didn't log any naps for the day, the Other sleep tile won't be shown. To check your sleep stats for other days, choose the desired week, month, or year using the tabs. Tap on a specific sleep session to check your sleeping heart rate for that period. Touch and hold the chart, then drag left or right to check your sleep details.

Frequently asked questions

Wear your tracker or watch to bed and let the Fitbit do the rest. In the morning, sync your Fitbit and you'll be able to see your sleep stats and insights in the app.

The Fitbit Flex uses your sleeping heart rate and movement to measure your time spent in each sleep stage.

The red lines show when you were awake, and the light blue lines show when you were restless.

The Fitbit Flex is always on and automatically detects sleep logs. Many users have reported that the data matches their perceptions of their sleep quality.

No, when your Fitbit is in "sleep mode", it will record sleep but not steps.

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