Sleep Paralysis Symptoms, Treatment, and Causes
"When Does Sleep Paralysis Usually Occur?
Sleep paralysis usually occurs at one of two times. If it occurs
while you are falling asleep, it's called hypnagogic or predormital
sleep paralysis. If it happens as
you are waking up, it's called hypnopompic or postdormital
sleep paralysis.".
Sleep Paralysis
"What are the symptoms?
A complaint of inability to move the trunk or limbs at
sleep onset or
upon awakening
Presence of brief episodes of partial or complete skeletal muscle paralysis
Episodes can be associated with hypnagogic hallucinations or dream-like mentation (act or use of the brain)"
As you are more knowledgeable than me on sleep paralysis I must ask, are these websites wrong or am I misinterpreting what you are saying?