"Go to hell," Covenant mumbled. "Don't you ever sleep?"
"The Bloodguard do not sleep."
"What?"
"No Bloodguard has slept since the Haruchai swore their Vow."
With an effort, Covenant pulled himself into a sitting position. He peered blearily at Bannor for a moment, then muttered, "You're already in hell."

Thomas Covenant and Bannor, Lord Foul's Bane