No Sleep Til L.A. traces Tom Petty and The Heartbreakers through their formative 1970s years, gathering rare and previously unheard recordings. Highlights include unreleased Heartbreakers songs Parade of Loons and Sin City, alongside early Mudcrutch recordings Up In Mississippi Tonight and Wild Eyes. Also included are previously unheard songs Unheard of Kind of Hero and Satisfy Yourself, with the material newly mixed from the original multi-tracks by Ryan Ulyate.