Delta Sleep emerged from a band called Sávlön, featuring bass player Maria Sullivan and drummer Adam Brodigan beside Yüceil and Hodgson. They released a self-titled EP in 2010, followed by Management in 2013. Shortly after the release of Management, Sullivan and Brogan left the band to start a family and focus on other musical projects, respectively. They were replaced by Dave Jackson and Blake Mostyn, both friends of the band. Delta Sleep released their first full-length album Twin Galaxies in January 2015.
