I too have a 5 month old puppy (labradoodle) and the best advice about chewing when you're sleeping is to crate him...maybe get him a bigger one? I give this advice, yet I haven't followed it lately, since it seems that Roscoe perks up for a play session every night when we go to bed, and the new crate we bought is too big to fit in our bedroom, and he won't sleep in another room. I've received the same advice from many people...ignore his barking/whining and sooner or later he'll accept it...easier said than done after it goes on for over an hour. My solution now is we have a baby gate up in the hallway, so he can go in our room, his cage in the spare bedroom, or the bathroom (he likes cool floors) at night...so he's actually been good at night for a week or so. He has chewed some speaker wire, but that's it as far as things inside the house (outside is a whole other story). He's a pretty mellow puppy. Our vet marvels at how good he is, and how lucky we are. But we do crate him whenever we leave the house, and like I said we limit his area at night. EDIT: Danzig, while he's good, he doesn't listen at all either, and sometimes the only way to get him to come inside is ask if he wants a treat...amazing how little time it took for him to understand that word.