Table 1.

Content of group sessions (I–III)

Session	Content	Strategies participants were encouraged to try
I. Unwinding from stress	The sleep formula  Stress factors and stress reactions at work  CBT-model: Analysis of behaviour in stressful work situations  Unwinding routines before bedtime  Mindfulness, focus on the present moment  Body scan exercise	Observe behaviours in stressful work situation and reflect on alternatives  Practice focusing on the present moment  Unwinding bedtime routine  Body scan
II. Promoting sleep according to homoeostatic and circadian factors	Follow-up from session I  Routines for leaving work  Homoeostatic processes regulating sleep  Circadian processes regulating sleep  How work hours interact with sleep regulating factors	Routine for leaving work  Personal goal for supporting sleep related to the homoeostatic and circadian processes  Evaluating work hours using the ArturNurse webtool
III. Handling fatigue by increasing recovery behaviours	Follow-up from session II  Cognitive, physical and emotional fatigue  Balance between activity and rest  Short relaxation exercise  Recovery behaviour on and off work  Activities boosting energy	Practice recovery behaviours at work  Engaging in activities boosting energy during free time  Practice short relaxation

CBT, cognitive–behavioural therapy.