Dahlia Sleeps are South London duo Luke Hester & Lucy Hill and for me, they have absolutely nailed it.
Described by their management co. as "the love child of Daughter and the XX", I'd say that's a pretty fair assessment in both composition and quality.
"Black And Blue" is the latest effort, which has followed quickly on the heels of both "Breathe" (catch the video below) and "Hessian". For a debut trio of demo's, I'd say Dahlia Sleeps are already up there with the very best in the genre - XX, London Grammar, Vallis Alps, Arctic Lake.
Absolutely adore everything about these guys!