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Once set, your phone will alert you when it's time to go to bed to get the amount of sleep you desire. With this feature enabled, your phone pays attention to when you stop using it at night and when you reach for it in the morning to approximate the number of hours you slept. You can see that data in the Sleep Analysis section of the Health app.
Though apps are a great way to get started with sleep-tracking, they're not a perfect solution. They can be thwarted by mattress movement if you sleep with a partner , your phone can fall off the bed, and they can also cause your phone to overheat if it's under sheets and blankets. To get a better idea of how well you sleep -- how long you're in REM cycle sleep or whether you move around a lot while you're snoozing -- you can use a fitness tracker.
Many of these devices already come equipped to track sleep. Keep in mind, though, that because these devices aren't designed specifically for sleep, it's a good idea to double-check their accuracy.
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For example, according to a study and a recent lawsuit , Fitbit's actigraph overestimates sleep by 67 minutes, which is pretty significant. To make sure your fitness tracker isn't over- or underestimating how long you were out, use an app to be safe, or the good old-fashioned method of remembering when you went to sleep.
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If you are serious about tracking your sleep, try a smart mattress or dedicated sleep sensor, such as the iFit Sleep HR or Eight Sleep Tracker. Sensors fit under or over your existing mattress to track movement, plus heart and respiratory rates.
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They use that data to tell you how long it takes you to fall asleep and how long you spent in each cycle of sleep throughout the night. Smart mattresses do the same things, but also often include heating and cooling modes and other premium features. Rather than having a fitness tracker pull double duty, the main benefit to a dedicated sleep tracker is accuracy.
The secondary benefit is not having to wear a wristband in your sleep or worry about it dying throughout the night. Gathering all of this sleep data is only useful if you actually use it.
After several nights of tracking your sleep, you'll end up with information on how much "deep" vs. Unfortunately, most sleep apps and fitness trackers don't give you much advice on how to make changes to your sleep habits based on that data. If you're not hitting the number of hours you need: It's time to adjust your bedtime or wake up call.
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If you're sleeping, but not getting much deep sleep: It could mean your bedroom is too hot or cold, or that you need to cut back on caffeine or alcohol. You might also have underlying sleep conditions , like sleep apnea or insomnia, that you should get checked out by a doctor. If you wake up a lot at night or toss and turn: It could mean you're sleeping too hot, that caffeine or alcohol is interfering with your sleep, or you're dealing with stress.
Apps and sensors can help you understand what's happening while you're asleep, but they aren't stand-ins for going to the doctor. Let us know what you think in the comment section below. Features How To News. Comments Read comments. You Might Like. New Android ransomware poses as coronavirus tracking app. This simple trick can make face unlock functionality work with face masks.
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