Doesn't sound like a bad habit, sounds like he needs to pee and you either need to get up and let him out or train him to use a peepee pad in the night. He's being a good boy and letting you know he needs to go potty.
You might try taking up his water bowl around 8pm so he doesn't tank up on water before he goes to bed. I have my 2 trained to peepee pads so when they wake up in the night, they just use the pad and then come right back to bed. |