The research investigates the role of digital technologies and ICS materiality in onboard immersive spaces to reframe sustainable vessels’ design. Digital technology and reactive materials have been gradually coming into the world of the pleasure maritime industry, implying new possibilities of experiences for users. Despite that, the yacht and vessel design debate lacks on sustainability perspective for these emerging technologies. In this scenario, the paper explores case studies and scenarios, analysing that through the lens of Smartainability. This study is part of a wider research conducted by the Design Department of Politecnico di Milano on the potentials of smart technologies and ICS materials on the new cruise vessels and yachts, t...