You could make getting a new bed into a "prize" for her successful potty training. I'm old school and went with good ol' cotton training pants for my kids. If you use Pull-Ups, they don't get mushy and cold like the cloth ones so the kids aren't motivated to stop having accidents.
We diapered them at night for a while, but they stayed dry once they were "day trained."
Keep it all positive. "You pottied on the carpet? Oopsie--next time see how fast you can get to the bathroom," etc. I think it's best to try to stay at home for a couple of weeks so that you can be consistent.