While I agree that dogs should play an important role in your life, they shouldn't completely take over. Tomorrow, I return to work and Oscar (13 weeks) will be left for 4 hours. As you are giving her plenty of attention when you are at home, that's absolutely fine. She'll get used to her routine and will sleep when no one's at home. Oscar sleeps when I'm out. He leaps out his crate and acts as if he's missed me but he's yawning and stretching. I know he's been asleep and is fine.