Conclusions
sleep disorder
To the best of our knowledge, this is one of the first studies to evaluate the feasibility and preliminary efficacy of app-based audio tools designed to aid sleep in the general public. We show that such tools are feasible and may result in significant improvements in sleep quality, work productivity, and other mental health outcomes, when used by working adults without a sleep disorder. These findings were broadly replicated under both controlled and more pragmatic study conditions. Given their wide accessibility and ease of use, such interventions could have extensive financial and public health implications, and should be further investigated in a definitive RCT.