The Fitbit Versa also features an SpO2 sensor for measuring blood oxygenation, but Fitbit is not yet using this feature to tell you about your sleep (more on this later). PPG measures blood flow based on how green light from an LED on the back of the watch is reflected by the body.īasically, Fitbit looks at how much you’re moving and how often your heart is beating to infer whether you’re awake, in a deep sleep, a light slumber, or dreaming. To learn about how Fitbit can monitor my sleep, I tracked my nightly slumbering with a Fitbit Versa watch for two months. (Full disclosure: I received this product free of charge from Fitbit to review.)įirst, how does a Fitbit watch monitor sleep? The Fitbit Versa infers when you’re sleeping and what stage of sleep you’re in using an accelerometer (an instrument for measuring bodily accelerations of the wrist) coupled with a technique called optical photoplethysmography, or PPG. As I’ve discussed in previous posts, sleep is essential for draining the brain of toxins linked to Alzheimer’s disease and for consolidating memories from the previous day. Getting a sufficient quantity and quality of sleep is not only a core component of health, but often an underappreciated one. But one of the smart watch’s most useful features is arguably what it monitors while you’re burning the fewest calories: your sleep. When you hear the word “Fitbit,” you probably think about logging steps, calories, and cardio. Head to our Kokoon Sleep Headphones review for more info.If someone had told me a year ago that he sleeps with his watch on at night, I’d probably wonder just how eccentric of a personality I was dealing with. These are purely at their best when you're relaxing. It's an expensive solution though and if you want something that tracks the rest of your day, this isn't the gadget for you. Basically, it's like a sleep therapist, allowing you to find the music and white noise that works best for you before tracking how you're doing so you know exactly what works for you. It learns as it goes along, recommending programs and audio from the dedicated app that – in theory – will help you rest and sleep better. Each earcup features EEG brainwave sensors built in so once they come into contact with your ears, the headphones can figure out when you've fallen asleep, how long it took, and how deeply you're sleeping. They're an expensive but highly competent pair of headphones that offer extensive Active Noise Cancellation features as well as some very clever sleep tracking tools. If a wearable doesn't appeal and you don't want to plug something in under your mattress, there's always the Kokoon Sleep Headphones. Head to our Withings Sleep Analyzer review to find out more. There's also very little else out there that's quite as accurate as the Withings Sleep Analyzer and the fact it's so unobtrusive yet effective is very appealing. That means it's a bit of an expensive purchase to track one issue through your day, but we appreciate that its app ties into others well, giving you insight into your general health and body performance all day long. In terms of sheer sleep tracking power, you can't go wrong with the Withings Sleep Analyzer but it is purely a sleep tracker. It's also able to detect any snoring episodes as well as spot any signs for sleep apnea, an underdiagnosed condition that can be a huge problem if left untreated. Thanks to that, it offers far more advanced sleep tracking than its competitors with an in-depth analysis of your sleep cycles, durations, and any interruptions. You slip it under your mattress, plug it in, and leave it to do all the hard work for you, allowing you to sleep encumbered. If the idea of wearing a wrist strap all night is unappealing then the Withings Sleep Analyzer is the solution for you. If not, read on for some more buying advice, followed by our pick of the best sleep trackers 2022. If you're here because you're struggling to sleep, you might also want to explore our ranking of the best mattresses, or perhaps pick up one of the best weighted blankets, which work wonders for some restless sleepers. Alternatively the Kokoon Sleep Headphones (currently top of our best sleep headphones roundup) will help you monitor your sleep as well has helping you to sleep better. However if you want all the sleep data, you should look at a dedicated tracker like the Withings Sleep Analyzer, which sits under your mattress and keeps tabs on everything that happens in the night. While its accuracy isn't 100%, it's still a great all-rounder suitable for most people. It features heart rate tracking so that you can monitor your different sleep stages, and it also works as a fitness tracker for the waking hours. If you're in a rush to find the best sleep tracker, we'd currently recommend the Fitbit Inspire HR.
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