Get a light for it if it's a bed side gun. Identifying the target is the most important. I didn't used to think it was important tell I read about a guy that shot and killed an intruder in his kitchen.
That intruder turned out to be his son that came home from college for the weekend unannounced.
Heard a kid came home from vietnam, wanted to surprise his parents, same thing.
A light is a good idea, if I have a problem I would probably grab the 9 mm handgun