Unfortunately, snakes hate smooth edges. They are easy for us to clean, but hard for them to grip with their belly scales. So, some compromise is necessary. Rather than newsprint, consider repticarpet. It's rougher than newsprint and it's easy to wash. Use two pieces and swap them during cleaning. This allows the soiled piece to air dry between uses which I feel helps with disinfecting. Sun drying would probably be even better. Your BP will also need something rough to aid in shedding. I use a paving stone. It's rough but easy enough to clean with a brush. Placed under the heating element, it will also provide belly heat for basking. Keeping the enclosure clean is very important just don't go overboard with it. Provide some rough surfaces so you bp can properly shed and navigate its enclosure.