I just wrote a small text about PTSD, perhaps there is something in there which can help you:
@hivesheep/ptsd-post-traumatic-stress-disorder-some-helpful-tips-a-homeopathic-remedy-called-ignatia-amara-a-breathing-technique-called
There is also the so called natural sleep which you might want to look into, see naturschlaf. com, then click on downloads, then the british flag to download this text.