Sleepwalker patients are enemies unique to Madness: Project Nexus. They have bandages covering their entire body. They also have a distinct mask with wires and a red eyepiece. When sleepwalker patients are killed, their masks will revive them. But after the third death, the mask will malfunction and detonate, destroying the sleepwalker patient and injuring anyone nearby. However, if a sleepwalker patient is decapitated, and thus the mask is destroyed, he will neither be revived nor detonated. For some reason, this is also the case if the sleepwalker is slain by a zombie or an abomination.