A practical validation study of a commercial accelerometer using good and poor sleepers - David L Dickinson, Joseph Cazier, Thomas Cech, 2016
Box plot of sleep efficiency of BCG vs. Fitbit. | Download Scientific Diagram
Sleep Tracking Wearables | Is Your Sleep Tracker Accurate?
Sleep efficiency formula used by Fitbit API - Fitbit Community
Is there a way to see sleep efficiency % on iOS? : r/fitbit
Frontiers | A Multi-Level Classification Approach for Sleep Stage Prediction With Processed Data Derived From Consumer Wearable Activity Trackers
Comparison of multichannel and single-channel wrist-based devices with polysomnography to measure sleep in children and adolescents | Journal of Clinical Sleep Medicine
Box plot of sleep efficiency of BCG vs. Fitbit. | Download Scientific Diagram
Sleep Efficiency via FitBit | Aaron H | Flickr
How Does Fitbit Measure Brainwaves: A Qualitative Study into the Credibility of Sleep-tracking Technologies
Validation of Fitbit Charge 4 for assessing sleep in Chinese patients with chronic insomnia: A comparison against polysomnography and actigraphy | PLOS ONE
Sensors | Free Full-Text | Reliability of Sleep Measures from Four Personal Health Monitoring Devices Compared to Research-Based Actigraphy and Polysomnography