Ours is 6 months old and is terrible at night time, just when you want to relax!
A bone has helped a lot, Henry will chew that for an hour so at least its a little peace!
I think we should try hunting games as well, and maybe buy a nina game to try. He gets plenty of exercise, two hours off leash every day! And doggy play dates on tuesdays, and puppy class on Wednesday!
Let me know what works for you!
dawn x