An Interactive Smartphone App, Nenne Navi, for Improving Children's Sleep: Pilot Usability Study.BACKGROUND

Nenne Navi
The concordance between the information provided by caregivers and the actigraphy data was assessed.  There was no significant difference between the information provided by the caregivers and the actigraphy data for bedtimes and wake-up times (P=.13 to P=.97).  However, there was a difference between the actigraphy data and the caregivers' reports of nighttime sleep duration and nighttime awakenings (P<.001 each), similar to prior findings. 
actigraphy data
After pediatric sleep experts retrieved this information from the Osaka University server, they specified the problems and provided multiple sleep habit improvement suggestions to caregivers. 
the Osaka University server
This paper describes a preliminary study to examine the app's basic design and functions and to establish its acceptability and usability in a small sample.


 Caregivers then selected one of the feasible pieces of advice to practice and reported their child's sleep-related behaviors via the app.  The acceptability and usability of the app were evaluated using self-report questionnaires completed by caregivers; qualitative feedback was obtained via semistructured interviews after the intervention.


 User feedback showed that 6 and 5 of the 10 caregivers rated the app easy to understand and easy to continue to use, respectively.  Additionally, 6 of the 10 caregivers rated the app's operativity as satisfactory.  The present findings suggest that the app can easily be used and is acceptable by Japanese caregivers.  Given the user feedback, the app has the potential to improve children's sleep habits by sending individualized advice that fits families' backgrounds and home lives.  Further studies are needed to confirm the efficacy of the app and facilitate social implementation.
the app
Actigraphy was used to monitor children's sleep behaviors objectively.  The concordance between the information provided by caregivers and the actigraphy data was assessed.  There was no significant difference between the information provided by the caregivers and the actigraphy data for bedtimes and wake-up times (P=.13 to P=.97).  However, there was a difference between the actigraphy data and the caregivers' reports of nighttime sleep duration and nighttime awakenings (P<.001 each), similar to prior findings. 
actigraphy