Spiders, Squids, and other creepy things that hide under the bed
As a child, I had recurring nightmares about “something” scary that lived under my bed and only came out at night. It was usually a witch or something white and amorphous in nature but always ominous and scary. I had a dread and fear that these things would sneak up and startle me, catch me “off guard” and get me. Not sure what the “getting” involved I only know the sense of overwhelming fear and complete loss of control.