whats that thing when you start to sleep and you start to feel like you fall off the bed?

Question

like when you sleep the one muinte you about to fall of the bed

Answer 1

I read somewhere it's some type of apnea. You stop breathing and you get the startle reflex because it's your brain's way of telling you to start breathing again. Something like that.

Answer 2

sounds similar to feeling an intense spasm in one's legs or arms while falling to sleep.

Answer 3

you mean the sensation of falling ? i get them all the time weird aren't they