As children prepare for bed, the world around them is also settling down for the night. Animals who live in the jungle, the forest, the sea—all whisper to their babies a soft refrain: It's time to sleep, my love.As comforting as a soft blanket and warm as a goodnight hug, Eric Metaxas's lullaby is lovingly brought to life by bestselling artist Nancy Tillman (On the Night You Were Born) , whose illustrations celebrate the wonders of the natural world, and the bonds of family.