In this study, we aimed to explore the experiences of being cared for in an intensive care unit (ICU) through patients’ memories. We adopted a convergent parallel mixed-method design. We interviewed 100 patients shortly after their ICU discharge. Content analysis revealed 14 categories and 49 codes grouped according to themes corresponding to ICU Memory tool core components (factual events, feelings, delusions). The most critical patients reported mostly fragmented or delusional memories, the less critically-ill more factual memories. All experiences were recounted with strong feelings. ICU was identified as a hostile, stressful environment. Positive experiences were mainly associated with a sense of safety promoted by the nurses. Negative experiences were related to privacy and dignity violations, lack of empathy, not being understood, delays/lack of obtaining support, and total control by the health care staff. Removing any avoidable sources of stress and ensuring personalized, dignified care represent a key aim for ICU interprofessional teams.