Dear Mr. Burns,

thank you for your answer! Sounds good what you write. But then I think, you are a pro in this field, so maybe I can't achieve the same. I don't know.

What is with US flights and what is if you have a surgery? Or even a surgery on the head? Ok, probably you don't get in this situation, but I am in the situation that I need a recording of my sleep. For this, they have to put sensors on my head. Does this still work with a hair system or what do I do? I don't get an appointment in the next few weeks.

I am now at a point where I think I will try it. But I want to know if there is not a big problem coming when I do it.

Thank you for your following answers!