Why does my 4 year old prissy girl wake me up at nite at all hours of the morning?

When she wakes you up is she needing to go to the bathroom?? If so, you might want to take her to the vet and get her checked out. Maybe she has a UTI (urinary tract infection) or a bladder problem?? I see she is 4 years old. Has she always done this or did you get her from a previous owner?? Maybe she misses them.....if so you should talk to the previous owners and see if this is normal for her. Good luck!!