This study explored the relationship between personality psychopathology and hospital experiences of young adult psychiatric inpatients. Research on self-determination theory has shown that healthcare settings that meet patients' basic psychological needs contribute to greater treatment engagement and recovery. However, the emphasis of the acute care on safety and stabilization can result in lower satisfaction and higher frustration of psychological needs, with some patient populations being more likely to experience controlling and isolating hospital practices. The study examined how personality traits, as measured by the Personality Inventory for DSM-5 (Brief form), predicted hospital satisfaction (and frustration) in a sample of 68 inpatients. Correlational analyses show that hospital need satisfaction is negatively correlated with detachment, whereas need frustration is positively related to antagonism, disinhibition, and psychoticism. Multiple regression analyses revealed psychoticism as a unique positive predictor of need frustration. Results suggest that those with trait psychoticism are likely to experience more need frustration in the hospital than in their everyday lives.