I'm very happy with using terrarium carpet or reptile carpet. Its very easy to clean and reusable. I have two carpets for each tank so I can replace it quickly when it gets soiled. I run it under luke warm water to remove the poop/pee and spray it with a disinfectant to kill any bacteria. It has worked for me for years. For humidity, I have a small bowl of wet terrarium moss in the corner of the hot side. As it warms up, the humidity is fine.

But as many of these good folks have said, it depends on your location, your general humidity, your tank's set up and such.. Good luck..