If you don’t want to run it at night, I’d suggest shutting the doors to your bedroom and running the AC before you go to bed. Long enough that when you do go to bed, it says dry and cool for long enough for you to fall asleep. Without knowing anything about your room or your AC situation, I’d guess at least an hour.
If won’t take long to figure out how long it needs, and then you’ll get in the habit of turning it on at the same time each night.
It it has the ability to cycle itself on and off based on the temp of the room, you could turn it on earlier, let it run longer and it would do a better job as long as the door is closed. In that case, you’ll be able to bring the humidity down further while not bring the temperature down to 50.
If this is a window AC or a portable unit with an exhaust tube that goes out a window, make sure it’s sealed up, otherwise some of that humidity is just coming right back in.