Hello @nojo, Welcome to Connect. I have no experience with Cereset but did find a couple of references you might find helpful.

- Clinical Study Shows Cereset Tech Reduces PTSD Symptoms in Military Personnel: https://www.sleepreviewmag.com/sleep-health/sleep-whole-body/mental-health/clinical-study-shows-cereset-tech-reduces-ptsd-symptoms-military-personnel/
- A Pilot, Placebo-controlled Clinical Trial of Cereset Research for Insomnia (4404): https://n.neurology.org/content/94/15_Supplement/4404

Was Cereset recommended to your husband by his doctor?