There is a very informative thread here that asks the same question. I would encourage you to to search for it. It really is an excellent thread with just a ton of great information. I read it and decided to use the deep litter method for my run and coop. I do not have time to clean sand up every day and Sand is so stinking heavy and freezes easily in winter. I cannot imagine having to walk on sand in the winter, so I chose mulch with deep litter. I also have a garden, and some low spots in our yard. I am hoping to have the chickens make my compost for me to spread around the garden and yard. My plan is to clean the coop every fall, after gardening season is over. Before adding bedding from the coop to the run, I will harvest from the run to add to the garden. I know it will take time and patience, but I am in nor rush. I would suggest asking yourself questions about how much time you have to spend cleaning and freshening up your coop each week. How many chickens do you have? Where are you going to put the poop if you have sand?