I use sand inside my 4x6 coop. My 6 ladies only sleep in there, they are out in deep litter run during the day. I love it! I just scoop it out like kitty litter every day or so as i collect eggs. When it gets dusty I spray it with a spray bottle of water mixed with a few drops of citronella oil and vinegar. 2x a year i clean it out and add 2 more bags. I may have to add another bag in between because you lose sand as you scoop.