Are wartime dream diaries a testimony to violence and its impact on society and culture? Do dreams shape and respond to history and the collective remembrance of war? This article argues that wartime dream collections constitute a testimonial practice that brings visibility to experiences hidden from the public domain and missing from dominant discourses on war. Connecting post-2022 Ukrainian dream diaries and theoretical contributions to cultural dream analysis by Charlotte Beradt, Georges Didi-Huberman, and Wilfred Bion, I argue that recognizing dream sharing as witnessing raises ethical and political questions because it is not a constative speech act, but a form of thinking about and action on history. Within this ethical–political perspective, sharing dreams is never merely about relaying contents to the reader but a relational act of self-disclosure. I conclude that to read records of war dreams is inseparable from being called upon to receive and offer hospitality to a dream.