Do you mean a heating pad like this? http://www.petsmart.com/product/index.j ... Id=2754324
I know of a few people who have used them and they work fine but they are for spot heating only. There is no concerns about them chewing the cord.
I have used a human heating pad inside the cage of 2 hedgehogs that were extremely temperature sensitive and needed a heating pad as well as warm temperatures. They never bothered the cord or pee'd on the pad but I certainly don't suggest the use of a human heating pad inside the cage unless you know your hedgehogs behaviour very well.
I know of a few people who have used them and they work fine but they are for spot heating only. There is no concerns about them chewing the cord.
I have used a human heating pad inside the cage of 2 hedgehogs that were extremely temperature sensitive and needed a heating pad as well as warm temperatures. They never bothered the cord or pee'd on the pad but I certainly don't suggest the use of a human heating pad inside the cage unless you know your hedgehogs behaviour very well.