“Hempispheres is the fifth studio album by the American stoner doom metal band Sleep. The album was digitally released on September 3, 2026, with physical copies set to be released on October 30, 2026, through Third Man Records. The album was preceded by the single "Have Spacesuit Will Travel (4:20 Flexi Edit)" that was released in June 2026 alongside a comic book written by Al Cisneros and illustrated by Dave Kloc and Arik Roper. The album marks the first release of Sleep's new formation, consisting of vocalist Al Cisneros, guitarist Bubba Dupree and drummer Dale Crover, replacing Matt Pike and”