Flinders University: Plus side of app use before bed. “Overuse of mobile devices gets a bad rap but an upside may be their ability to create a distraction and positively affect teenagers’ ability to get to sleep, new Flinders University research shows. Feedback from more than 600 teenagers from age 12 to 18 at South Australian schools between June and September 2019 has led the international research group to point to a more nuanced view on using the wide range of mobile content – led by Youtube, music apps, Instagram and Snapchat – before young people’s bedtime.”