Analysis of Lullaby

SLEEP, sleep, my treasure,
The long day's pleasure
Has tired the birds, to their nests they creep;
The garden still is
Alight with lilies,
But all the daisies are fast asleep.

Sleep, sleep, my darling,
Dawn wakes the starling,
The sparrow stirs when he sees day break;
But all the meadow
Is wrapped in shadow,
And you must sleep till the daisies wake!