Sleep has been recognised as compromised in dementia care. This study aims to represent the experiences and needs of informal carers via sleep-related accounts. Retrospective interviews were conducted with 20 carers concerning sleep changes across the trajectory of dementia care. Key interactive narratives were around: ‘sleep as my sacrifice’; tensions between identities of being a ‘sleeper’ versus ‘guardian’; and ‘sleep as a luxury’. Maintaining healthy sleep and preferable sleep practices is challenging while balancing the responsibilities of dementia-related care. Acknowledging sleep as a sociological practice enables a greater understanding of carers’ nuanced experience and support needs.