Dean couldn't help but be both charmed and reassured by the fact that Seamus was clearly half asleep. "True, but then I'd not manage to use mine before it goes off," he said softly. "Let's just take this before you end up actually burning your stomach," he said, plucking the mug off Seamus' stomach. If he was desperate for something warm Dean could charm him something that wasn't going to result in hot liquid everywhere.
"You nap," he said, smoothing Seamus' hair off his forehead. "I'll make soup for when you wake up." A sleeping Seamus was far easier than one awake and in pain or grumpy. Of course given the amount of sleep Seamus hadn't actually had in the last few days he'd probably need to wake him so he could eat, but that wasn't so much of a problem. Maybe if he managed that and Seamus was feeling better he could convince him to get in his bed. Which meant he might be wise to change the sheets. It always made him feel better after a bout of insomnia or restless sleep.