Sleepwalk is a DC supervillainess. She's a member of the Brotherhood of Dada, and a villain of the Doom Patrol.
Holly McKenzie was a young woman who was born tremendous power. She has superhuman strength and endurance, but ONLY if she's asleep. She's been known to take sleeping pills and wears headphones that play Barry Manilow to keep her asleep. She was recruited by Mr. Nobody and became one of the members of the Brotherhood Of Dada. Sleepwalk was one of the members who decided to stay in the Painting that Ate Paris.