What’s the fun of Halloween if you didn’t play pranks on some people? One of the ways is to use bloody sheets. If a person is sleeping you can put some blood on the sheets so when that person wakes up it will scare the hell out of them, you can also exchange their blankets to a scary blanket so it looks much scarier.
For the purpose of just decorations you can also color you own pillow with blood splatter along with the bloody sheets. You can also give bloody sheets as a Halloween present to your friends or family. Or you can use them for just decorations.
If you are placing bloody sheets in the room for decorations than you might should use a bleeding rug as well and dim lights. It will create a full scene of murder in a room and will definitely scare the persons that will enter the room.