think more common one is the falling into bed.
when i was younger worse man, always have this dream like im super mario keep moving forward and jump to hit coins.
then suddenly must jump over a big gap totally silence like in space, all black.
then i would get woke up by it.
for me my body will jerk when i push myself to wake up when i accidentally fall aslp in lecture...sux man, nearly push all the stuff on the table down once...gah so embarassing sia...