I love this because I know exactly how that feels! This usually proceeds her trying to sit on my face and then poke me in the face while staring with large eyes until I'm too irritated to sleep--at which time she promptly goes to sleep herself.
I get it close to this. Though my cat would sit there for 20-30 minutes doing that claw thing where the press their paws up and down with their claws out. Then she'll circle a few times and lie down. XD