Michael knows Lee worries about things—different things than he worries about, although they're both special cases—and he takes it seriously. Once she's back under the covers with him, he runs fingers through her hair like he can brush those worries out. He does this a lot, even though he's not sure how well it works. No harm in trying.
To his surprise, he finds he's able to quickly relax again, and after a minute or two of focusing on making sure Lee is okay, he can no longer keep his eyes open. Warm and comfortable, he falls into a satisfying slumber.
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When he wakes up again, Lee is staring at him. He's used to that. He's used to being stared at in his sleep in general. The light in the room is different, and he wonders how long he was out. Next on the list of things to buy: clock-radio. And probably a bedside table to put it on. The lamp is currently sitting on the floor.
“Hi,” he says groggily. It must have been a while. He feels different than he usually does after he sleeps.