Wake up with kitten curling up next to me. Think, wow, that's really cute. Could you come back in January? Roll over, go back to sleep.
It's January, and they're back...
The real problem is they are inconsistent about it. This means with the warm wooly blanket on the bed and me wearing a long sleeve shirt to sleep in, the tiger heaters show up at 2 AM and (just like in July) blow the calibration of the bed.
I don't want to boot the boys off (we like the company), but that seems to be the end result of my nudging them a safe distance away.