Inclusion Criteria:  Admitted to the trauma ward with sustained blunt chest trauma Age≥16 Patient is willing and able to comply with the study protocol  Exclusion Criteria:  Neurotrauma with GCS ≤13 History of dementia, seizures, epilepsy Severe hearing/visual impairment not corrected Headwounds or damaged skin with which comfortable and hygienic use is not possible. Stay at intensive care unit (ICU) during current hospital admission. Erect position in bed not possible/allowed.