Today, 2 november 2022, I think I cracked the code or am getting close to it.
I suspect the couche is seperated into three parts, generating different electric effects, see youtube video for an explanation:
1. The top part/pillow: tribo electric effect
2. The seating part/pillow: piezo electric effect
3. The bottom part/pillow: tribo electric effect
Perhaps all three differently charge and/or some kind of interaction is happening between these effects. Perhaps something new, not yet discovered.
I am not an electric expert, but what electric component does this drawing remind you of if any ? Assuming my suspicion that there are different charges in each part.
For example part 1 positive, part 2 negative, part 3 positive.
Which kind of electrical component functions like that ???
Bye for now,