The design process and development of MySleepSolutions - A sleep module for a lifestyle self-management app for low back pain

<b>Background:</b> Mobile health applications for the management of chronic conditions may be an effective method of supporting self-management. <b>Objective:</b> This report aims to describe the design process of a novel mHealth sleep retraining program for people with low back pain (LBP). <b>Methods:</b> This report includes a detailed description of the design and implementation process which utilized a four-stage framework: (i) concept development, (ii) therapeutic/design approaches, and app features/functionality), (iii) implementation metrics, and (iv) clinical outcomes in end-users. <b>Results:</b> The content of <i>MySleepSolutions</i> which is user-centered, personalized and evidence-based, is grounded in Cognitive Behavior Therapy for Insomnia (CBT-I) techniques and follows best practice guidelines. <b>Conclusions:</b> This detailed description of the design and development of <i>MySleepSolutions</i> ensures the program is comprehensive and has a sound theoretical basis while providing transparency and supporting future research into the development of mHealth retraining programs for sleep disturbance associated with LBP.