I saw some mats on Amazon with pretty good reviews. It's a six pack, says it will last for years, and you just rinse it off, let it dry for ten minutes, and put back in coop. It's called 6 pack washable nesting box pads. Anyone use them? Did your chickens like them? I have a coop that is small (for bantams) and I thought this would be easier to maintain than scooping out hay or shavings all the time.