when im goin to sleep, like right when im about to go into a dream i get this weird fallin sensation. it feels as if my beds tippin up and im sliding down it and im free fallin down and right when i feel like im falling i get a sudden jolt and it ends.
anyone know whats goin on?

http://en.wikipedia.org/wiki/Hypnic_jerk

Did you wake up on the floor?

no i wake in my bed. but that first reply kinda answered my question. thanx.