There are at least two artists/bands with this name. 1) A vaporwave musician from Philadelphia, Pennsylvania. Actually Winter Sleep, but Last.fm autocorrects it to Wintersleep. 2) Wintersleep are a Canadian indie rock band from Halifax, Nova Scotia. What started out as a side-project, eventually turned into one of the most popular live shows in Atlantic Canada. Wintersleep came together in 2001 and is composed of Loel Campbell (drums), Paul Murphy (guitar/vocals) Read more on Last.fm