We've had our 13 month old lab puppy for a week (the previous 3 months he was at a trainer's - he's a duck retriever). He does great in the house, only a couple of accidents (we moved this week, so no surprise there). He lets us know by walking to the door, and giving a little noise if he doesn't have our attention, that it's time to go out to use the bathroom. Genuinely he does great overall. However, when we crate him at night, he does fine until between 2-3am, and then he starts whining and crying and is inconsolable. The first night, we let him out thinking he needed to pee. He peed a tiny little trickle and that was it. Now he does the crying every night between 2-3 am and is keeping us and our neighbors from sleeping.

We tried adding a comfy mat (similar to his bed) to his crate, gegtting a toy to comfort him to go in the crate with him, and even covering the crate with a sheet. No luck. We're desperate for sleep and to have good nights with this puppy so any ideas are appreciated.