Why Would That Work?

I lay my phone back on my night stand, and press the button on the side to turn off the screen and plunge the room back into darkness. It's only 4:30 in the morning, and I don't have to be up for another hour-and-a-half, but I'm wide awake and not tired at all. 

The light from the parking garage next door is bright enough to leak through our thick curtains and make them gray, and the dog's toenails click on the floor as she shifts restlessly in her sleep, while Katie breathes deep and slow next to me.

I find myself visualizing skiing down a mountain in Vermont, trying to go faster and faster in my head until I fall back asleep.