We evaluated the performance of a consumer multi-sensory wristband (Fitbit Charge 2™),
against polysomnography (PSG) in measuring sleep/wake state and sleep stage …

Study Objectives: Consumer wearable devices may be a helpful method of assessing sleep,
but validation is required for their use in clinical practice. Our aim was to validate two models …

Background Wearable sleep monitors are of high interest to consumers and researchers
because of their ability to provide estimation of sleep patterns in free-living conditions in a …

Polysomnography (PSG) is the “gold standard” for monitoring sleep. Alternatives to PSG are
of interest for clinical, research, and personal use. Wrist-worn actigraph devices have been …

ABSTRACT Objective/Background: To evaluate the performance of a multisensor sleep-
tracker (ŌURA ring) against polysomnography (PSG) in measuring sleep and sleep stages …

We compared performance in deriving sleep variables by both Fitbit Charge 2™, which
couples body movement (accelerometry) and heart rate variability (HRV) in combination with …

Purpose Although polysomnography is necessary for diagnosis of most sleep disorders, it is
also expensive, time-consuming, intrusive, and interferes with sleep. Field-based activity …

Abstract Study Objectives Consumer sleep-tracking devices are widely used and becoming
more technologically advanced, creating strong interest from researchers and clinicians for …

The objective of this study was to assess the validity of a sleep/wake activity monitor, an
energy expenditure activity monitor, and a partial-polysomnography system at measuring …

Study Objectives: To compare the quality and consistency in sleep measurement of a
consumer wearable device and a research-grade actigraph with polysomnography (PSG) in …