It is really interesting with their hibernation habits. First I read that they change place to hibernate depending on if the mound of leaves deteriorate, and than someone wrote that it might be a way to avoid parasites. I would guess that since even dry and warm artificial nests are abandoned, parasites might be one explanation.
it would be interesting to see a video of where many hedgehogs are radiotracked and see at what kind of places they most commonly hibernate.
Where I live there are some very low and very dense bushes and also very close to where people pass all the time. I wonder if they would realise that even though there are sounds of people, it’s still safe.