a friend of a friend of mine once ingested some juice from a cactus and had an interesting dream the following night. he dreamed that he was awake and was trying to get to sleep, while he was actually sleeping. and this went on alllll night. even though, the following day, he could remember falling asleep, in the dream he didnt actually sleep, he just lied in bed restless all night. i thought this was interesting, has anyone else heard of anything like this happening? it seemed to me to be like a hallucination occuring during a dream?!?!?