I hope it works out for you Sdh! I would hate being woken up at 4:30 am. My pom is good all except for her barking. Drives us all insane!!! I never thought I would do it but I even bought her a barking collar. Initially it worked great, but now that she's used to it...not so much. She will either bark quieter (yes, it's funny) or will just bark through the zaps.
She barks when someone comes to the house, when someone leaves the house, when one of us goes upstairs, or comes downstairs. If Madison runs, she barks and chases her, if Maddie throws a toy up in the air, she barks. Now she's even barking at every car door she hears outside. I"m telling ya, I'm a pretty tolerant pet owner, and I've had a lot of pets but geeze oh wiz, she drives us nuts!!!