Mature students in postsecondary education—those over 25 years of age, also known as nontraditional students or adult learners—make up a significant minority population on Canadian postsecondary campuses. Despite academic performance that tends to be higher than that of traditional students, the retention of mature students is lower due to the stressors they face in their home and school roles. This paper examines the insights of mature students and their intimate partners on how higher education institutions can provide better supports to make postsecondary programs and campuses more accessible to adult learners and enable their success. A sample of 25 mature postsecondary students enrolled in Canadian higher education institutions and their partners participated in dyadic interviews that explored the connections between their relationship and school experiences. A data-driven, inductive thematic analysis of the transcribed interviews found three themes that focused on the institutional support needs of partnered mature students, highlighting the need to (1) increase institutional knowledge and awareness of mature students’ needs, (2) offer flexible study options to complete courses and program requirements, and (3) provide relevant supports and programs. Mature students felt marginalized at their institutions related to the programs, instructors, staff, resources, and supports that are strongly focused on traditional-aged and circumstanced students. Recommendations are provided for higher education institutions to provide resources and supports that meet mature students’ unique needs to both access and be successful in their pursuit of postsecondary education.