It's a moment before he realises Ianto's watching him, and when he does he gives him a slightly sheepish smile. But he feels too good to worry about anything, and before long his eyes are drawn back out to sea.
"It's stunning," he agrees, still smiling, and finally lies back down so he can have a big old yawn and stretch, feeling the relief in muscles that feel like they haven't moved in a long time.
"I feel like I've been sleeping for weeks!" He chuckles, with a sideways glance at Ianto. "No shared dreams this time, though!"