ABSTRACT Objective Individuals, who experience psychosis are found to have worse fitness levels, are less likely to be physically active, and experience greater sleep problems than the general population. The aim of this research was to examine the Well-Track psychical activity and sleep quality intervention which addresses these issues; it comprises using a Fitbit, motivational interviewing, goal identification and setting, exercise and sleep hygiene advice and feedback sessions with staff working in an Early Intervention in Psychosis (EIP) service. Method This qualitative study examined patients’ and staff’s experiences of Well-Track. Semi-structured interviews with thirteen patients and five staff were analysed using thematic analysis based on a structure-process-outcome framework. Results Key elements of the structure comprise supportive staff and the use of a wearable device (Fitbit). Process themes included the implementation of a multifaceted framework, setting realistic goals and a personal recovery process. Outcomes identified were knowledge (about exercise and sleep), implementation of action-orientated behaviours and improvements in well-being. Discussion Effective sleep and engagement with physical activity and exercise are important for the well-being and mental and physical health of EIP service patients and facilitating this can be achieved through Well-Track which comprises evidenced components to promote behaviour change. EIP services can implement Well-Track to meet service goals related to reducing weight gain, improving well-being, improving physical activity and enabling better self-management and healthier lifestyles.