“It seems that you have accidentally wandered into a restricted area. Due to the sensitive nature of the materials that you may be exposed to here, you will not be allowed to leave until the clean-up crew arrives at 6AM. So hang tight. Rest assured that you will be promptly rescued, fired, and sent home. Thank you for being an employee. We hope your experience has not been as regrettable as ours.”
The Private Room is a secret room in Five Nights at Freddy's: Sister Location. It is accessed by disobeying Circus Baby/Ennard and going to the room on the opposite side of the Scooping Room. The player must first fully complete the Baby Death Minigame to enter the room. After beating Ennard within the Private Room, it says it will find a way out. After that, Custom Night is unlocked which takes place in the Private Room.
After surviving the night, the player finished their job and gets a basket full of exotic butters as a gift while watching the last episode of The Immortal and the Restless from home, also known as the "Fake Ending". After the screen goes static, shuffling noises are heard and if the player looks to the right, it is revealed that Ennard found a way out and has come to kill the player.
Unlike the rest of the layout of Circus Baby's Entertainment and Rental, this particular room shares many familiar elements from the previous games in the series, though it mostly resembles the Office from the first game in the series.
The Private Room highly resembles the many versions of The Office from previous Five Nights at Freddy's games. In front of the player, there is a desk holding up a fan, a Fredbear plush toy, with a remote control, three animated static monitors, a soda cup, and a few crumbled pieces of paper. On the wall, there is a poster of Circus Baby and a visible Bidybab with the word "Celebrate!". There are two doors and a vent above that can be closed similar to the first game.
The Private Room has seven cameras, including a vent CAM, named very similarly to the first three games. Across all, the style of the rooms very similar to the first two.
The Private Room is also the location of the Custom Night, featuring nearly all of the game's animatronics, and introducing 5 new animatronics, named Lolbit, Electrobab, Minireena 2, Bonnet and Yenndo, who all have their own ways of attacking and/or stopping the player.