Those things are the purest torture that are not warm but burn like hell on the skin. As you would have been 8 hours of direct sunlight. After 10 minutes, I have it demolished in pain. The parts stick to the skin so that it reflects the pull pain. As if the sunburn were not enough. The tension is still not gone away!
So if you want to really sleep verbrutzeln the fur should rather resort to chilli paste. Is certainly cheaper and has the same effect. ;-)