I have a similar problem with Teddy. He has such a fast digestive system and I can't seem to adjust his internal clock, so he has do "big business" at 11 pm and no later than 6:30 am. Often, it's earlier. My critical REM-sleep is always interrupted.
I would always respond to Cooper's request to go out because he is demonstrating that his need is legitimate. Not sure what to suggest for changing his inner clock because it sounds like you are doing everything right with exercise and feeding. I wouldn't withhold water, especially because of Cooper's previous licking problem.
__________________ Kristin, Max and Teddy  |