Megazorb and ?

[Mlom]

I have the pleasure of adopting 2 boys last night. I am planning on picking up megazorb today.
They have both been used to wood shavings however one of the boys has very long fur and I want to prevent matts where I can.
I am planning on using megazorb as a base any recommendations for what to pop on top, I have hay in sleep and dining but not sure about the run thanks

 

[Siikibam]

Are they indoors or out? If in, you could get something waterproof (shower curtain, plastic table mat, puppy pads) and put fleece on top.