You were in your house, and was just chilling.

(ill explain what he does: When 12 AM strikes, the anomaly has a chance to spawn from the forest or emerge from a bush and climb up to one of the windows. It will break the window, then break the planks (if there are any), which will delay the anomaly depending on how much planks are used. It can sneak through the front door; however, it is unknown whether if it's intentional or not. The player(s) can turn on the lights of the room to scare the anomaly away. Once inside the house, the lights do not affect the anomaly. If it breaches through and enters, the player(s) can hide or attempt to flee away until it despawns, which is after around 5-10 seconds of running away from it. It can open closets to kill players as well and can also hide in them which is likely not intentional.

If a player is outside, the anomaly will target that player first, chasing them until it kills them, or they outrun it. If the anomaly is still targeting that player, and the player goes inside the house, the anomaly can sneak in through the front door without warning. The anomaly can also climb ladders, including those in the house and those outside.)