“Death was a friend, and sleep was Death's brother.”
“Death's brother, sleep.”
“When in the down I sink my head,Sleep, Death's twin-brother, times my breath;Sleep, Death's twin-brother, knows not Death,Nor can I dream of thee as dead:”
“Sleep is death enjoyed.”
“Sleep: the stepchild of Death.”
“Can death be sleep, when life is but a dream, And scenes of bliss pass as a phantom by?---"On death”