Sleep and circadian wearable technologies: considerations toward device validation and application

The accurate quantification of sleep and circadian rhythms outside of the laboratory setting is a priority for sleep and circadian science. Wearable devices are a practical means of quantifying variables of interest in naturalistic environments, often without the need for expensive resources to administer and score the data. Wrist-worn wearable devices are the most common, typically using the popular actigraphy method for long-term sleep monitoring [1]. These devices can be used for a variety of research and clinical purposes [2], from individually tailoring insomnia treatment instructions through investigating the consequences of insufficient sleep