Prison monitoring has been promoted by international human rights bodies as a way to support the prevention of torture and ill-treatment in prison. However, there has been very limited examination of the operation of prison-monitoring bodies, especially from the perspective of those most affected by their recommendations: those who live and work in prisons. This article draws on interviews conducted with people living and working in a Scottish and a Norwegian prison to explore how they perceive a long-standing prison-monitoring body, the European Committee for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment (CPT). The article provides an examination of the benefit and utility of CPT recommendations from the point of view of people in prison and prison staff. The study further reveals that the effectiveness of CPT monitoring in prisons may be considered in terms aside from state implementation of recommendations and should include how people in prison see its work, its impact, its power to persuade, and its connection to the outside world. Through taking a prison-centered approach, the article contributes to wider discussions on whether and how human rights frameworks can alter experiences of punishment.