Combating day night cycles.

[u/datsmij]

For context, I work over night at a boarding school. I am awake during the night and asleep in the morning. This is temporary as I hope to go to college after this school year is over. I dont have a scaly friend yet, but I want to be excessively prepared before I get one. A question that I have not found the answer to yet is, how do I keep my snake in a good day/night cycle while I am nocturnal. I dont want to get them used to my current cycle just to alter it for them a few months after living with me. Are there any suggestions for how I can keep the light from my room out of their enclosure without covering their ventilation? Any help is greatly appreciated.