In the event you want your sleep analyzed, medical doctors will normally order a polysomnography, which analyzes an individual’s oxygen stage, coronary heart price, respiratory, eye motion, and leg motion whereas concurrently working an electroencephalogram (EEG). 

An EEG reveals your brainwaves by means of totally different levels and cycles of sleep. A wearable smartwatch or health tracker in your wrist, nevertheless, is way out of your mind.

The most well-liked wearables by Fitbit, Apple, Garmin, and Samsung gather a mixture of the next measurements: coronary heart price and coronary heart price variability (HRV), motion, breaths per minute, and pores and skin temperature. Units that monitor sleep cycles use an algorithm to hypothesize your sleep cycles based mostly on the information.

A 2017 research in contrast a polysomnography with the efficiency of a Fitbit Cost 2 in 35 adults. Researchers discovered the Fitbit system detected sleep onset with 96% accuracy however overshot time spent asleep by 9 minutes on common. Within the research, the Fitbit detected gentle sleep with 81% accuracy, deep sleep with solely 49% accuracy, and REM sleep with 74% accuracy. 

A newer research revealed in April of 2022 in contrast the efficiency of Fitbit Alta HR to outcomes of an EEG carried out concurrently on 40 school athletes whereas sleeping. This research discovered FItBit information to satisfactorily monitor sleep onset, time spent asleep, and sleep cycles. Fitbit could be a useful gizmo for athletes’ sleep administration.

Whereas not 100% correct, the Fitbit information had a robust correlation with polysomnography information.