5/6/2023 0 Comments Iwatch sleep tracker![]() ![]() Like other sensitive information collected by Apple devices, stats about your sleep stay on your device. "We treat the data that's being collected on a user's device with a high level of sensitivity around privacy. So we've been working on this for a while," Lynch says. ![]() Instead, Apple has been building its machine learning models from data collected through internal studies. "Many people are already well aware that they haven't been getting enough sleep, and so we're not adding to that, but we are positively acknowledging when you have achieved your goals." Apple's not planning to use your sleep dataĬompanies like Fitbit have used anonymized user data for years to study demographic sleep patterns and improve observations on sleep, but Apple doesn't plan to do that. "There could be anxiety that people have about going to sleep, and that anxiety itself can actually cause more problems in terms of going to sleep," Lynch says. If the goal isn't met, the app will aim not to flag it. ![]() If a sleep goal is met or beaten, there's positive feedback. Instead, notifications and reinforcements are all positive, similar to what Apple has done previously in the Health and Activity apps. Sleep patterns can be tracked in Apple's Health app, but there's a conscious move away from pinging people to fix bad habits or alerting them to nights with suboptimal sleep. We focused on the transition to the bed, which we think is way more actionable, and will result in people getting a better night's sleep, which then has secondary effects of perhaps your REM stages sorting themselves."ĭuration and schedule, but deeper estimated analysis isn't available yet. "We felt like that wasn't the best way Apple could add value here on sleep. "You can't really coach yourself to have more or less REM stages," he says. Third-party apps can show deeper estimated sleep analysis, but Apple believes "that it can be overwhelming and stressful to look at that data," Lynch says. Lynch says that Apple decided not to show more complicated estimated sleep data because the company's sleep studies didn't show results that felt useful: "Movement of your arm is an input, but it's not a complete picture of what's going on inside your brain," he says. Even then, I saw it as something that would eventually make sense on the Apple Watch. The iPhone feature lets you set your bedtime and morning alarm times and then tracks whether you use your phone during the downtime. I tried Apple's Bedtime feature on iOS way back in 2016, which was a surprisingly helpful tool to remind me to stick to a good bedtime routine. It's about the wind down, not a sleep score In a conversation with CNET during WWDC, he shared some thoughts on why Apple's sleep tech is what it is.Īpple's Wind Down feature on the iOS 14 is part of the Apple Watch's sleep experience, too. Lynch has a unique perspective on why other features, like estimated sleep scores, aren't being presented for now. The company's been researching sleep tech for years, running private sleep studies and using EEGs to measure sleep against what a device like the Apple Watch can record. Instead, Apple's placed a big focus on the time you go to bed and what you do while you wind down.Īpple's VP of Technology, Kevin Lynch, who has worked on the Apple Watch from the beginning, says that sleep has been part of the plan since the watch debuted five years ago. The content of your sleep isn't analyzed much at all. It just tracks duration of sleep, movement disturbances and heart rate. Unlike other wearables such as the Fitbit or Oura, which measure how much time you spend in the various sleep phases and even give calculated sleep quality scores, Apple's sleep tech is more simplified. It adds sleep tracking as an onboard feature, but you might be surprised at what sleep tracking on Apple's watch does and doesn't do. That's changed with WatchOS 7, unveiled last week at Apple Worldwide Developers Conference. While sleep tracking was possible using other Apple Watch apps, Apple never entered the space formally, despite purchasing sleep-tech company Beddit in 2017. Of all the smartwatches I've tried, the Apple Watch was conspicuously the only one that seemed to lack its own onboard sleep tracking. I've tried tons of watches, bed sensors and apps. I've used a CPAP machine ever since, and I've been interested in understanding how well I sleep and how to improve my rest. I put wires all over my face, wore a pulse oximeter on my finger and confirmed I had sleep apnea. It's been almost five years since I first had a sleep study done at home. This story is part of WWDC 2022, CNET's complete coverage from and about Apple's annual developers conference. ![]()
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