All depends on what you run into, figuratively and literally.
If you know navigation rules and have experience on powerboats that's sufficient to give you the confidence to run at night, then the incremental knowledge/experience of a sailboat probably won't represent enough risk to disuade you. After all, you can always run the engine.
But if your experience suggests you might ask the same of yourself regarding motoring at night, maybe it's best to go slow on the idea.
Assuming the vessell is in good working order and equipped with appropriate navigation lights
and safety equipemnt, the minimum requirements should include: a good working, callibrated compass
and the ability to read them, crew to help, VHF
, depth sounder. A hand held GPS
would be next, but not a must have as the items above are IMO. Then you get into the nice to haves after that like integrated chart plotting and GPS