oy imagines he's a different animal as his mother attempts to put him to bed. "I'm a baby lark," he tells her. The mother then says to him that baby birds are called hatchlings and it is time for this hatchling to go to sleep. "But hatchlings don't sleep in beds, they sleep in nests," she says. And so it continues as the boy imagines he is a baby mountain lion, bighorn sheep, chipmunk, coyote, skunk, and moose. This is a twist on "goodnight" books that also teaches about animal families and their habitats.