heres an idea
in the story mode there should be shop you can visit after every night and the shop keeper is one of the enemies of the game.
here are some item ideas
a cup of coffee that makes your exhaustion to instantly drops to zero but at the cost of it rising 30% faster for the rest of the the night.
a big meal to give an enemy to make them not being able to move till 3 am but at the cost of being really expensive.
a pill bottle that will instantly putting you to sleep and ending the night aka a joke item.
a bottle of sweet smelling perfume that will make the enemies more aggresive but it will give you a bigger reward at the end of the night. so a high risk high reward item.
a spooky mask to scare off any enemy that is infront of the door.