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.