I'm not sure if this are the most accurate sizes of the Nightmare Animatronics, But I compared it to Derpy_Horse4's animatronic size to be exact but still not sure about the size,
Nightmare Freddy Child Costume - FNAF - Walmart.com
Five Nights at Freddy's FNAF Sister Location Action Figure Nightmare Chica Funko | eBay
Funko Action Figure Five Nights At Freddys 5" Articulated Nightmare Freddy : Amazon.com.tr: Kitap
Five Nights at Freddy's 4 - Apps on Google Play
fnaf 4 nightmare freddybear wallpaper | Fnaf 4
FNAF Nightmare Chica Adult 3/4 Mask - PureCostumes.com
FNAF 4 but it's something out of an actual nightmare (PART 3) : r/fivenightsatfreddys
![Blender] Stylized FNAF 4 Characters. : r/fivenightsatfreddys](https://preview.redd.it/uywvav4g1ua61.png?auto=webp&s=ee4bd860215bf4f5771ea2fe8f747eb8a347526d "Blender] Stylized FNAF 4 Characters. : r/fivenightsatfreddys")
Blender] Stylized FNAF 4 Characters. : r/fivenightsatfreddys
Nightmare FNAF Guide - FNAF Insider
Nightmare | Five Nights at Freddy's Wiki | Fandom
Funko Nightmare Set Of 4 Figures: Five Nights At Freddy's Fnaf 4 Nightmare Set Of 4_y | Fruugo TR
Nightmare Fredbear | Triple A Fazbear Wiki | Fandom
![FNAF - Nightmare Concept by thewebsurfer97 -- Fur Affinity [dot] net](https://d.furaffinity.net/art/thewebsurfer97/1672386661/1672386661.thewebsurfer97_fnaf_nightmare_concept.jpg "FNAF - Nightmare Concept by thewebsurfer97 -- Fur Affinity [dot] net")
FNAF - Nightmare Concept by thewebsurfer97 -- Fur Affinity [dot] net
Nightmare Animatronics | Five Nights at Freddy's Wiki | Fandom
Who is the most underrated nightmare in your opinion and why? (Credits to ZBonnieXD on Twitter) : r/fivenightsatfreddys
Nightmare (FNAF) | VsDebating Wiki | Fandom
WHO IS NIGHTMARE?? | Five Nights at Freddy's 4 - Part 7 - YouTube
WHO IS NIGHTMARE?? | Five Nights at Freddy's 4 - Part 7 - YouTube
Set of 6 Five Nights Action Figures FNAF Nightmare Foxy Bear Chica Figures Toy Dolls for Birthday Gifts Cake Toppers, 6 Inch: Amazon.de: Toys
Funko POP Games Five Nights At Freddys Nightmare Freddy : Funko Pop! Games: Amazon.com.tr: Oyuncak
![Nightmare - Download Free 3D model by pokkenjake2021 (@pokkenjake2021) [87a680c]](https://media.sketchfab.com/models/87a680c14dc34b9b805cf15764aa5bac/thumbnails/58fa5930eb264c49a554705ee5de8aae/9e72a821ce0643da9032406f09ad59d8.jpeg "Nightmare - Download Free 3D model by pokkenjake2021 (@pokkenjake2021) [87a680c]")
Nightmare - Download Free 3D model by pokkenjake2021 (@pokkenjake2021) [87a680c]
FNAF 4 Bedroom Guide - FNAF Insider
1983/1987 Fredbear in FNaF 4 by RealZBonnieXD on DeviantArt
![THIS IS MY NIGHTMARE!!! | Five Nights At Freddy's 4 [FNAF 4 Part 1] - YouTube](https://i.ytimg.com/vi/l4ag0XR4GO4/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLCmOGF9OWoZjVQi38lq8WhDgLKdOw "THIS IS MY NIGHTMARE!!! | Five Nights At Freddy's 4 [FNAF 4 Part 1] - YouTube")
THIS IS MY NIGHTMARE!!! | Five Nights At Freddy's 4 [FNAF 4 Part 1] - YouTube
Fnaf Nightmare Five Nights At Freddy's Kids Collectable Action Figure Toy | Fruugo SA
![Amazon.com: Toysvill Inspired by Five Nights at Freddy Game Action Figures Toys (FNAF) Toy, Set 6 pcs, Height 6in [Nightmare Foxy, Freddy, Bonnie, Fazbear, Chica and Human Security] with Masks : Toys](https://m.media-amazon.com/images/I/81QJzdEeE-S.jpg "Amazon.com: Toysvill Inspired by Five Nights at Freddy Game Action Figures Toys (FNAF) Toy, Set 6 pcs, Height 6in [Nightmare Foxy, Freddy, Bonnie, Fazbear, Chica and Human Security] with Masks : Toys")