Sleep have revealed the opening acts for their North American tour. Among them are: Pink Mountaintops, Zombi, The Schizophonics, and Mac Sabbath. Tour Dates: With The Schizophponics: 09/08 San Diego, CA – The Observatory North Park With Pink Mountaintops 09/09 Phoenix, AZ – The Van Buren 09/10 Albuquerque, NM – Revel 09/12 Dallas, TX –…