FWIW-
Normally, I'm snoozing by 9:30-10 PM on sundays. It's 1230 AM and I'm wide awake for no particular reason. I've been up since the cats cha-cha'd my belly this morning at 5:30AM, hungry as can be.
On that note, they usually get fed twice per day once in the morning, once in the late afternoon. They normally eat and then do whatever.
They have been aggressively chowing down and meowing for more all day long. They have also been clingy and following us all over the house.
Unusual behaviors-FWIW.
Steve in Sierra Madre,CA