To describe sleep nurses' experiences of working with sleep-promoting nursing and to describe their experiences of having sleep as an area of responsibility within nursing.

On-line survey to evaluate the introduction of a sleep guideline and a web-based sleep training aimed at staff in nursing wards.

On-line survey description from patients' perspectives about sleep in connection with hospital care.

The sleep guideline has been available since 2021, but it is unknown whether healthcare professionals are aware of this guideline. And whether it is used in clinical practice.

Individual semi-structured interviews with sleep nursing champions (SNC) to investigate their experience about the role as SNC:

• Description of the tasks as a SNC.
• Identify characteristics that are important for being a SNC
• Identify success factors in the assignment
• Identify obstacles or setbacks in the assignment
• Identify the areas of nursing that are important to develop to promote patients' sleep
• Need for sleep as an area of nursing
• Existence of support from your immediate manager, colleagues, other professional groups or the project group.
• Changes in how you think patients' sleep is affected by the introduction of a SNC in your department
• Perceptions of patients' sleep in connection with hospital care
• SNC knowledge of sleep and health-related quality of life linked and how.

We also collect demographic data: age of participants, number of years as a nurse, employed at department and orks: day or three shifts or night only.

The survey consists of questions about:

Intervention units:

• General knowledge about sleep and factors that affect patients' sleep in hospitals
• Specific sleep questions about sleep and sleep-promoting measures according to the online training program and guideline
• If sleep is prioritized in the clinic and for the individual.

Control units:

• General questions about sleep and sleep-promoting measures in acute care.

There is also the possibility to develop the answers given in the survey through so-called free text answers.

We also collect demographic data: professional title/profession, number of years in the profession, age, gender, and which theme/department you work in.

At the intervention units we also collect data about whether you have completed sleep training, and whether you have read the sleep guideline.

Web-based or printed paper questionnaire survey:

• Increase knowledge about patients' experiences of sleep in hospitals.
• Investigate patients' experiences of staff's work to promote patients' sleep.

There is also the possibility to develop the answers given in the survey through so-called free text answers.

We also collect demographic data as: date of birth, gender, marital status, education level, use of sleep medication, hospital ward, single or multi-bed room.