Feedback actigraphy and sleep among long-haul truck drivers.

This pilot intervention study evaluated the effect of feedback actigraphy on sleep and sleep-related variables in a group of long-haul truck drivers. Visual feedback from actigraphs provided cues to the truck drivers, alerting them to their accumulated sleep times. Exposure to the cues was hypothesized to lead truck drivers to modify their behavior and result in improvement in sleep and sleep-related variables. It was predicted that exposure to feedback actigraphy would be associated with more sleep (quantity), better sleep (quality), a more positive attitude toward sleep, less subjective sleepiness, and increased control over sleep behavior by the sample.