Performance of wearable sleep trackers during nocturnal sleep and simulated realworld smartphone use

One of the sources of inaccuracy in sleep measurement relates to misclassification of periods of quiet wakefulness as sleep. The team devised a protocol to test this in a realistic manner that should be incorporated into future testing protocols. We showed how this protocol can be used to differentiate better quality and lower quality trackers. This testing protocol can / will be used by future researchers seeking to evaluate in wearable sleep trackers in realistic settings.