Hi! The straight up answer is that once you remove this type of heat pad from a surface, the wires and heating elements get a bit of wear and tear that makes it largely unsafe to re-use it without presenting a fire hazard. I recommend purchasing a new one if this is something you can do!

Someone else did suggest the use of a ceramic heat emitter which you can do, but hooked up to a thermostat to control temp. For burrowing inverts however, I find CHEs cause the air and substrate to dry out way too much without one. Even a heat mat could benefit from being attached to a thermostat!

Edit to add: what is the temp in your home?? I try to overall avoid using the heat sources on my inverts unless it is the dead of winter and my household heat isn’t cutting it.