Refeeding syndrome is one of the ten most common causes of death in hedgehogs. Too much food at once, offered to quills by well-intentioned people, can cause organs, including the heart, to fail.
It is often too late when people notice the hedgehog's apathetic state. @gluecksfelle.stachelnasen advises not to simply offer the spiny mammals as much food as possible when they wake up from hibernation. According to the animal rights activist, you should first contact a hedgehog foster home instead.