I put earplugs in all my gun cases along with speed loaders or extra magazines as required for the particular pistol. I don’t want to be deafened into just one shot. Alas then I lost them all in a boating accident.
In a dark room, ear plugs will prevent you from hearing where they are moving around in a dark room. You surly don’t want to take the time to turn on the lights. The solution is a noise suppressor.
My ITE hearing aids convert to excellent earplugs with one button push. Amazingly effective.