

Sleep Cycle Alarm Clock includes that technology, but you can also opt for the app to use your phone’s microphone to analyze your breathing and determine when you’ve fallen asleep. Many iPhone apps use the phone’s accelerometer to track your sleep movements, requiring you to place it by you in your bed as you sleep. Sleep Cycle Alarm Clock is above and beyond the most popular sleep tracking app. However, these apps can be a good first-line detection aid if you’re unaware of issues during your sleep, such as snoring, or unaware that you’ve been accumulating sleep debt. If you want to truly track your sleep cycle and get a diagnosis for a sleep disorder, the best bet is to make an appointment with your doctor and have a polysomnography test performed overnight in a sleep lab. Why the skepticism? Many of these apps rely on the phone’s accelerometer to track your movements, but people can make similar movements in deep and light sleep. Sleep experts are willing to agree that these apps can do a decent job detecting when you’re asleep versus when you’re awake, but remain highly skeptical of their claimed ability to detect your various sleep stages. ( Zambotti et al 2015, Evenson et al 2015, Kolla et al 2016). Researchers have studied whether smartphones and fitness trackers can really accurately track sleep time, and the evidence remains inconclusive, with some studies showing that some apps overestimate overall sleep time, while others underestimate it. Do sleep tracking apps really work?ĭespite their popularity with consumers, many professionals aren’t so keen on sleep tracking apps. Many people use sleep tracking apps to keep track of their sleep patterns, determine whether they’ve been racking up any sleep debt, and help them diagnose if they might be at risk of sleep deprivation or a sleep disorder. Instead, they aim to wake you during your lightest moment of light sleep. Their goal is to determine the best time within a 30 minute window to wake you up with your alarm, so you wake up less rattled than if you were roused from deep sleep. These apps use your phone’s accelerometer to monitor your movements, breathing, and/or heartbeat.
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At their core, sleep tracking apps track your sleep patterns, and upgrade your phone’s alarm clock to coordinate it with your sleep cycle.
