Wow I never realized how lucky I was till I read the posts here. Eury bites but stops soon as you say ow! But what makes me lucky is that my baby actually sleeps through the night. She's been trained from day one that when it's dark and she's in her x-pen with her bed it's time to sleep. She's quiet all night until my hubby gets up to get ready for work. Then he spends time with her.
What we've done to also encourage this behavior is we've made the x-pen at night very homey. She has her carrier/bed, her pee pad for when she can't hold it anymore, water, a little bit of food, chew toys and her favorite soft toys. So far the only night she's woken us up is right after we got her and she developed a mild case of bronchitis but fortunately after a week of meds she was fine.
Good luck with the training, it's hard I know and takes patience... lots of patience.
Chelle