I personally hate using newspaper unless Junior is shedding. I use it for a shed because I was sick of cleaning pieces of shed out of her substrate.

I hate using it otherwise because I was woke up too many times at about 4am to her crawling underneath the paper...the echoing on the glass is one of the loudest noises!

Also, if you do decide to use newspaper, tape the edges down..when junior would crawl under hers, so would sit directly on top of the heat pad (on the glass).