"Exactly," Sulu agreed to Jack's sentiments, giving him the firmest, most honest smile he could muster in that moment. He wanted to reassure Jack as much as he could, but so far all of his efforts had been directed towards Ianto. He'd even let himself crumble, just a little, in front of Jack, which he knew was the exact opposite of helpful for the other man. He'd have to make it up to him. He would make it up to him. He knew Jack was more prone to negativity - realism, part of his mind said - than Sulu was, and now he was somewhat prepared to handle it.

Squeezing Ianto's hand to reassure him as well, closing his eyes and leaning his head so that it rested on Ianto's shoulder. He wasn't tired - exhausted, sure, but not tired - and he didn't give off the impression that he was going to sleep. It was just a way to keep Ianto close to him until the other fell asleep and he did what he did best, which was finding a way to do the impossible.