im assuming most of u have had nightmares before, i was just wondering if it was possible 4 a nightmare 2 be so terrifying that u pass out? i used 2 get a lot of recurring nightmares that i remember with great intensity and i assume that the reason i remember them so well is that they scared me enought 2 wake me up. Now as far as i can tell i have never talked in my sleep but one morning my dad told me that i had woken him up in the middle of the night screaming my lungs out, like "shit im going 2 die" type of scream. i have no recollection of this im assuming because it didnt wake me up. now if a dream was so scary that it made scream out loud but didnt wake me up could it have been scary enough 2 make me pass out? Could i have woken up and instantly passed out or passed out in my sleep? or was it none of these things?