Alan Schwartz, director of the Sleep Disorders Center at Johns Hopkins Bayview Medical Center, said that while sleep tracking devices can be useful for helping a person recognize patterns in their sleep habits, they are not capable of directly measuring a person's sleep unlike sleep study.
Īs of 2017, it is estimated that 10% of adults in the United States use a wearable fitness and/or sleep tracking device on a regular basis. Some sleep trackers offer other features, such as "sleep scores" that rank how well a person slept, "smart alarms" that wake a person up within a set period of time based on the circumstances of the person's sleep, and the ability to track the amount of light and/or the temperature in the person's bedroom. Some sleep trackers are capable of tracking the stages of a person's sleep ( light sleep, deep sleep, REM sleep), the length/duration of a person's sleep, the quality of a person's sleep, and the consistency of a person's sleep. Devices capable of tracking a person's sleep include dedicated sleep trackers, trackers that clip onto a person's pillow, smartphones, fitness trackers, smartwatches, and other wearable devices. A device that tracks a person's sleep is called a sleep tracker. Sleep tracking is the process of monitoring a person's sleep, most commonly through measuring inactivity and movement. The Fitbit Alta HR, a wearable device capable of monitoring a person's sleep.
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