My cats sleep at night! I think this is because they get plenty of "play time" during the day. If you're gone most of the day, you need to make time to play A LOT with her when you ARE at home. If this means playing 'fetch" with her while you watch tv, or get a "feather-on-a-pole" and swish that around for her......anything to keep her active......then you'll have to do it.
Or, you could get her a playmate, who'd keep her busy while you're away. This would make her more tired in the evening!!
Getting her tired in the hours before YOU go to bed, and giving her some meat in the evening, will insure that she sleeps ...... at least for the first few hours of the night. It may take a few weeks of "retraining" ( you & her ) to get her to sleep most of the night, but it can be done.
I've noticed that my cats get up a few times during the night to eat ( dry "nibbles" ), but go back to sleep.......no playing, running, howling, etc.......during the night.
Hope this helps........Good luck.....
50+yrs cats ( 10 indoor, spayed & neutered ) / "issues"