Hypnotherapy and EMDR can be tricky for me. I haven't tried either because I have dissociative identity disorder and for some people that makes things worse so I haven't been willing to try that approach yet. I may look into it more.
I had DID for many years - most of my life. My alters have been integrated.
Hypnotherapy never worked for me. My defenses were too strong.
EMDR was fantastic, but I had to find the right EMDR therapist to get results. There are two levels of EMDR training. Those with only first-level EMDR training are advised not to worth with multiples at all. Even amongst those with the advanced training, some are better than others. Plus, to be effective, you need to be on-board, you need to want to do it. It only took me two sessions with an EMDR therapist, but she was the second EMDR therapist I saw.
I take meds to help me sleep and to help with nightmares, but I don't think they're working. I take others, too, but they haven't seemed to be interfering
Sleep meds - psych meds of any sort - never helped me. In fact, with Ambien, which is so highly touted, I just laid in bed in a trance with my eyes open for hours, sometimes hallucinating about a hole opening up in the wall at the light switch! No good. Now, if I need something for sleep, I take Benadryl, a simple OTC antihistamine. It is very safe, non-addictive, and doesn't lead to sleep problems.
A dream journal is a very good idea except that I have a very strict DID system and so some of what I dream isn't allowed to go on paper,
Have you talked this all out internally? Do you know why the internal rules are what they are? Can you all meet internally at a round-table discussion so you can present this idea and then talk it all out?
Ben