I can attest to the fact that heating pads are problematic. I used one for a few days while waiting for my heating equipment to come in and I have to say he rarely wanted to leave the comfort of the pad while it was there. It made me incredibly paranoid the whole time to see him not being very active at all. Heater arrived and thermostat hooked up and it was a 180 almost over night. He is now very active at night and trashing his cage like a proper lil hedgehog. Proper heating has certainly made him a healthier more active hedgehog. Worth every penny I promise.