I also had vivid dreams when I was taking Seroquel (but I was taking 25mg and a few other meds so hard to tell what that was from). I did sleep walk a few nights according to my roommate at the time. Nothing major though. I took either 25 or 50mg... doc left it up to me to play with the dosage. Mayeb 100mg was just too much. Maybe you could get by with just 25mg or something. It worked for a while... Took just enough of the edge off so I could sleep. Now on something else with new pdoc. I don't know what else you've tried but again, maybe you could back off the dose and you wouldn't be affected as much. Good luck!!