Night 6 is the "Nightmare" level where the difficulty spikes significantly because you are dealing with all the standard animatronics until 4 AM, at which point takes over the entire house. Here is a solid write-up and strategy to help you survive: Phase 1: 12 AM to 4 AM (The Gauntlet)
This night is mostly a test of your and audio cues . Stay calm, keep your ears open, and you'll see 6 AM.
Flash the light to reset them, then move to the next task. ФНаФ 4 - 6 ночь
Develop a "loop." Left door -> Bed -> Right door -> Bed -> Closet (if needed).
You must check the doors constantly. Run to a door, listen for breathing for at least 2–3 seconds. Night 6 is the "Nightmare" level where the
If Fredbear laughs, he has teleported. He is either on the bed or in the closet . Check the bed first; if he isn't there, check the closet.
Flash the light briefly to see him, then hold the door/closet shut (or keep the light on the bed) until he laughs again and moves back to the hallways. Flash the light to reset them, then move to the next task
During these hours, you face Nightmare Bonnie, Chica, Freddy, and Foxy. Speed is everything.