Dean has a quieter night than he's used to. Yeah, he's been pretty nightmare free in general since picking Cas up again, but he still tends to move around in his sleep a lot. Not this time. With Castiel's hand on his chest, Dean stays where he is the whole night through and well into morning.

When he wakes up, he's slept well enough that he actually feels charitable and tries to dislodge Cas without waking him, too.