Bruce turns his head to look up at Tony, brows coming together. Hadn't Tony showered before they went to sleep? Maybe he is mis-remembering, or more like not fully realizing just how bad Tony's tendencies can be at times. He gives a small nod, and then after a moment, he's alone.

It's an odd feeling when he realizes he wishes Tony hadn't left. Like a cat, he ends up turning over and for a minute or two, curls up in the warmth left behind. Ironically, it lets him drift off, not a full sleep, but a cat-nap that Tony, when he's done in the shower, will find Bruce still in, nosed down deep into Tony's pillow.