That point of sleep where you realise that your arm is sticking out of
bed and therefore susceptible to being grabbed by Freddy Krueger or similar that has been waiting under your
bed until you fell asleep. Symptoms include leaping, gasping, rapid heart
beat, withdrawing vulnerable arm, wrapping
body tightly in protective bedsheets.
This syndrome was created by excessive watching of horror flicks, usually at a socially unacceptable age.
I was having the most amazing
dream about an abandoned
house then BOOM, got hit by a Krueger
Sleeping Spasm, thought I was having a heart attack