Cat wakes up from where he's been napping in my lap for two hours. Squeaks insistently that he needs something.
I spend half an hour going through the checklist. He doesn't want out. He doesn't want food. He doesn't want water. He doesn't want play.
Finally I give up and decide to go to bed since I've been up all night.
He immediately jumps up, settles on top of me, and starts purring contentedly.