When I was younger, having sleepovers was a normal thing for me and my best friend. She lived in an old rundown house next to mine. After a night of fun, we crashed. Now, a bit of information on the situation, she shared a room with her mother with two beds. I got hers and she slept with her mom.
Every night, they locked the door to make things safer and never once did they unlock it at night. At almost sunrise, I woke up and looked around the room. Everything looked normal and as it should. I closed my eyes once again. But I suddenly got a bad feeling and opened them once again. The door was open.