[ He is just gonna brush right over the fact that he was having noticeable nightmares again, that's not what's important here. What's important is that Sumina snuggled up to him and fell asleep, and— ]

Then my nightmares must've gotten better when you got all snuggled up to me! Ehehe, you're the best, Mina-chan!

[ Reaching over, he tugs a blanket that's landed around her shoulders over her head like a hood. He's making no move to help extricate her from the blanket tangle. ]

You don't need to be embarrassed. It was nice.