Ignore her
BUT having said that, one thing I found help with my fosters around that age is to exercise them before bed. Not RIGHT before bed, but maybe an hour before bedtime. A short session of fetch and/or some brain games. This let me sleep in on weekends :P I really enjoyed sleeping! But mainly, you need to 100% ignore the dog. It may get worse before it gets better because it worked for them for a few times, but if you hang in there (even if you are up anyway) it will eventually fade away.