The house is quiet and dark. The window is open, and the breeze is cool on my face. Summer is giving way to fall, and I pull the blanket up to my chin. These nights, when the air is crisp, have always been my favorite for sleeping. But this night my mind is restless, and it won’t quiet. Willa wakes up and wants to cuddle. I squeeze her tiny body, take off my sweatshirt and…