THE lark is silent in his nest,
The breeze is sighing in its flight,
Sleep, Love, and peaceful be thy rest.
Good-night, my love, good-night, good-night.
Sweet dreams' attend thee in thy sleep,
To soothe thy rest till morning's light,
And angels round thee vigil keep.
Good-night, my love, good-night, good-night.
Sleep well, my love, on night's dark breast,
And ease thy soul with slumber bright;
It is possible that Dunbar is referring to the age-old children’s bedtime prayer, “Now I lay me down to sleep.” 

Good-Night