My hamster runs on her wheel all night long keeping me awake! What can I do to stop the noise so I can get some sleep?
Hamsters are nocturnal (or crepuscular, according to the linked source). That is why it is awake at night, and therefore there is not much you can do about its activity.
When I was a child, I had a hamster, and I recall this behaviour very well. Our solution was to move him to another room, and put a blanket over the cage to muffle the noise. So that would be my recommendation. I do not believe one should remove the wheel, however, as hamsters need that to work off excess energy that could otherwise turn into unwanted behaviour.