The fact that his habit of being a lot more careful and light handed with her when she was injured, even if it was something minor like a bruised cheek, always made Mika think he would never change when it came to her and in those moments he wasn't afraid to show his more softer side which made her feel happy in a round about matter.

She also knew part of him would probably think she was more injured than she was saying as she didn't fight him on getting some rest. She knew it was out of character for her to not argue about resting, but she also was old enough to know when it was worth arguing it and when not to. This was one moment when it wasn't worth protesting.

Due to falling asleep rather quickly, she was completely unaware that Dean decided to move from the chair and table and sit on the bed she was laying on, even though her unconscious mind seemed to know he was there and moved her head onto his lap because she subconsciously brought her arms over his legs and half hugged him as she slept, lightly nuzzling as she did so.

At the sound of scratching on the door, Mika never stirred awake unlike Dean. Normally she would have woken, her mind telling her danger was at her door and made her wake, but this time she didn't stir a single bit, most probably because of the painkillers she took earlier on and down to the exhaustion she never realised earlier she actually had because of her headache.  As Dean moved out from under her head, she simply stayed put where he laid her as he headed to the door to find out what or who was at their door.

It was only when he came back inside she half stirred awake, enough to be aware he was walking around, but not enough to open her eyes or say anything. From how quietly he was trying to close the door, her mind was telling her that he was desperate not to wake her, so she didn't want him to feel guilty by waking up.

She rolled over to her other side in her light sleep, pulling her legs up into herself as she did so, drifting back to sleep properly once more. She wondered if Dean would try to stir her awake or leave whatever had made him exit the room briefly until the morning as she drifted off to sleep, knowing that whichever decision he made determined how important what drew him out of the room was.