Responding to claims in urban studies and epidemiology that modern urban living negatively affects the mental health of the poor and newcomers to the city, this paper offers a different account based on an ethnography of a neighbourhood in central Shanghai, where precarious rural migrant lives unfold. Drawing on the concept of "ecologies of experience" to recognise the making of everyday sensibilities and affective tensions in urban dwelling, it focuses on subjectivity formed in habits of negotiating the urban environment, in coping with troubled thoughts and feelings posed by precariousness. The paper considers ecologies of experience arising in distinct prosaic locationsa public library, a large bookstore, and a caféfound to be important in the everyday spatial practices of migrants, grounding to different degrees of success hopes for their present and future in the city. In such dwelling, the stresses to mental healthconsistently described by migrants as "pressure" (yali)seem to be moderated through varied forms of respite, slowing-down, and "moments of being," though always in ambivalent ways. In recognising the everyday materiality of urban living, the paper looks beyond the tendency in studies of China's internal migration to read off migrant mental health outcomes from structural disadvantages related to work, welfare, and living conditions. Conceptually, it opens new ground in thinking by acknowledging the role of the felt qualities of lived experience in managing mental states, building on work in geography, sociology, and anthropology attentive to the affective resonances of place and to practices of urban negotiation. K E Y W O R D S ecologies of experience, ethnography, internal migration, mental health, urban China, urban public space 1 | INTRODUCTION In the history of writing on the effects of modern metropolitan life on mental health, an influential line of thought with roots in urban sociology argues that the stresses and strains faced by vulnerable populations such as the urban poor, combined with challenging urban conditions such as overcrowding, and sensory overstimulation, make for mental disorders such as anxiety, stress, depression, and schizophrenia (see