But Genie, "A la nanita, nana, nanita ella, nanita ella , mi Jesús tiene sueño" doesn't mean "mi Jesús tiene sueño a la nanita nana. ..", "my Jesus is sleepy to the lullaby" doesn't make sense in Spanish either. "A la nanita nana" is a set expression to lull the babies, so the whole stuff means "little lullaby, lullaby, little lullaby eya, little lullabye eya, my Jesus is sleepy" -or however you want to spell "ella" (I heard it sung/written "eya" too, which avoids a possible confusion with ella = she/her).