Spindly Legs
https://www.forbes.com/sites/quora/2016/06/09/how-many-spiders-and-insects-do-people-really-eat-unaware/#2e978bb47ed8

Shadow People
https://en.wikipedia.org/wiki/Shadow_person

Nyctophobia
https://www.healthline.com/health/nyctophobia

Forever Winter
https://en.wikipedia.org/wiki/Nuclear_winter
https://en.wikipedia.org/wiki/Impact_winter

Unseen Footsteps
https://www.forensic-architecture.org/lexicon/stone-tape-theory/
https://paranormalbucket.com/2017/09/01/a-bucket-of-questions-for-author-and-parapsychologist-brandon-massullo/
https://en.wikipedia.org/wiki/Haunted_house
Sleep Walkers
https://en.wikipedia.org/wiki/Homicidal_sleepwalking

Hungry Monsters
https://en.wikipedia.org/wiki/Neanderthal_behavior
http://www.bbc.co.uk/earth/story/20150805-neanderthals-strange-large-eyes
http://www.themandus.org/

Sleep Paralysis
https://en.wikipedia.org/wiki/Night_hag
http://sleepeducation.org/sleep-disorders-by-category/parasomnias/sleep-paralysis

Intruders
https://en.wikipedia.org/wiki/Ted_Bundy

The Thing Inside Your Closet
https://psycnet.apa.org/record/2013-31510-002
https://en.wikipedia.org/wiki/Bogeyman