The Reaper wins when all players are dead, unaligned, sleepless or nightmare-aligned. For each player that dies, the Reaper may use a power to turn another player sleepless.

The Reaper starts out sleepless and shares a channel with other members of the nightmare team. At the start of every night, the Reaper will be informed of which powers they may use that night. These powers correspond to the role categories of the players who have died since the start of the previous night. Each power is immediate, and turns its target sleepless: some powers have an additional effect, applied to the same target. For Killing roles the additional effect is an attack; for Investigative roles it is a role investigation; for Recruitment and Align roles it turns the target into a spirit. All other role categories have no additional effect. The Reaper is not told which role category the dead players belonged to: they are only informed of which powers (kills, investigations, conversions, and basic powers) are available to them. If the Reaper chooses not to use one of their powers during the night, they may not then use it the next night.

Sleepless players are not informed of their being sleepless: however, if a sleepless player uses an ability other than targeting on the Reaper, their ability fails and the Reaper immediately attacks them. The Reaper is affected by all disguises, obstructions and redirections when using their powers. They gain powers solely based on the true roles of those who have died. If no members of the nightmare team or channel remain, the sleepless effect is silently removed from all players.