"Smartphones have become an integral part of life and this is especially true for young people. Since 2012, ownership among under 34's in the UK has risen from 60% to 95% in 2018, with 80% of under 16's reporting they get their first smartphone between the age of 9-12\. While the benefits of the digital revolution are wide-ranging, a growing body of evidence indicates the 'always-on' culture it encourages, can have a negative impact on our health and well-being. Reduced levels of sleep, mental health problems and smartphone addiction are just some of the issues that can arise due to digital overload. A 2018 study among 11-15 year-olds found 43% agree they spend too much time on their smartphone, with a similar number reporting parents don't monitor usage. 30% also said usage negatively impacts on their sleep. With this in mind, our project aims to co-create with 11-15 year-olds, a proposition for a digital application that promotes self-regulation, with an initial focus on increasing levels of sleep. Ultimately we are aiming to co-create something which employs the very technology young people use so much, to encourage healthy levels of sleep at a stage when young people need it."