[Diarmuid hopes that is all it is. He's noticed how often Hierophant Green acts as a comfort or even a security blanket for times when Kakyoin himself is uneasy. But, being tired doesn't seem like an unlikely answer either considering how much is going on.]

Do you want to catch a nap before you head out? There are plenty of empty rooms and you know Jotaro will just get more stressed if he thinks you are ignoring your own health to take care of him.