The tribute concert will be held in memory of Chris Meredith, an ATC Live agent and Neverworld Festival director, who died aged 37 after he "lost his battle with depression in September".
A portion of the proceeds will be donated to mental health charities CALM and Mind.
Speaking about the memorial gig, Sleeper say, "Chris Meredith was a big part of the Sleeper story, bringing us back to the live circuit after twenty years away. He was an absolute gem, a champion of female artists, and we’ll miss him hugely. We’re taking part in this gig for Mind and CALM because they do such amazing work breaking down the stigma of mental health issues and helping people in crisis. Their work is vitally important. Perhaps now, more than ever."
CALM CEO Simon Gunning says, "As an organisation that has always worked closely with the music community, we're proud to partner with ATC Live to honour the memory of Chris Meredith. It's great to have the support of such brilliant artists in raising awareness of the services that are available to anyone who may be struggling, and donations contribute towards the operation of CALM's free and anonymous helpline and webchat which are open every day, 5pm-midnight."