Tucker is 3 months old now and sleeps in a crate. He's done very well with that and has had no accidents in the crate. We usually put him in the crate at about 11 pm and he goes to sleep quickly. Unfortunately, he wakes up barking around 6 every day -- about an hour earlier than we'd like :-(. I know he can last longer, since there have been some mornings when he has quieted down for a while. We put a towel over the crate so it is dark for him, but that hasn't helped. I tried just letting him bark for a while, but he's been showing more stamina. We get him to quiet down before letting him out, but any ideas how we can get him to stop barking so incessitantly? He naps in his crate (open during the day), so I think it is a "closed crate" issue. He also has plenty of chew toys in there, but it doesn't help in the morning. Is it just a puppy thing or am I doing something wrong?