I wonder what people think of the research this is based on https://www.affectablesleep.com/science
P.S. The website design is also imho a bit wacky.
Happy to answer any questions, if I'm not understanding your statement correctly.
By "regulating skeletal muscle tone" do you mean as an input? Or as a target?
We've mostly focused on neuro, though we did an experiment in Vagal stimulation, but you could never be sure what you were measuring, so we ditched that and focused on the area with the most research.
PTAS (the technical term for the stimulation) has considerable amount of research behind it with impactful results.
Always keen to learn more if there is something in muscle tone you think we should be looking at.