This paper describes the design process resulting in a cushion for relaxation called SlowBreath. The cushion was made with the intent to support people with Myalgic Encephalomyelitis (ME) in illness self-management. In particular, the focus was on energy balancing (activities interlaced with relaxation and rest) that people with ME need to master. When SlowBreath was finished to the extent that it could be regarded as a research product, five people diagnosed with ME participated in exploring the fit of SlowBreath in their lives, as well as the experiences that it generated. In this paper, the importance of design for minimal interaction for this particular user group is highlighted. The findings from the study are articulated as a set of implications for the design of everyday digital artefacts, aiming to scaffold self-management for people with ME.