Schools are increasingly concerned with the promotion of student wellbeing, and relatively little is known about school libraries as wellbeing supportive spaces in contemporary schools. This article draws on qualitative interview data from students and library managers to explore how students make use of the school library, and how this relates to the library as a safe space. It finds that school libraries can be highly valued for their capacity to foster belonging and sanctuary and allow exposure to books and opportunities for reading. Students also appreciated how libraries provided a space for relaxing and recharging, supporting lively and social activities as well as quietude. There was recognition of the role of supportive library staff, who created inviting and supportive environments with careful selection of furnishings and decorations.