Isn't there a risk of fire?
I did the yearly, let them build it up themselves with all the waste hay, until this year. This time, they managed to make it into a bizarre concrete-like layer that I still haven't fully removed...
I also hated how much they wasted. Hay is too precious and dollars too few to buy straw for it.
Easier to regularly sweep it out.
It's a moist compost pile, so I can't imagine any fire taking hold there...it would merely smoke or just fizzle out.
It's not a simple let the bedding build up kind of thing...this is a planned, layered, composting bed of a variety of materials and air spaces to promote good composting. It's adding more dry on wet areas and flipping wetter stuff into the dry areas until it's a uniformly moist but not wet bed of composting materials. The top layer would be dry, but underneath all kinds of good things are happening.
I'm not buying a thing but their original hay and even that I fix so there is minimal wasting going on, by keeping cattle panels tight to the bales. There will be some hay, mostly leaves, garden waste of corn stalks, sunflower stalks, tomato and squash vines, twigs, sticks, bark and wood chip from our getting in firewood. I'll even be emptying some ashes from the wood fire in there in thin layers so the carbon can be added to the mix.
It's not hard work but more of a monitoring, adding carbon, and building it right. I've been doing this for 6 yrs in my coop now and haven't had to take out anything but finished, rich soil/mulch that's fine as powder and fluff. No smells, no flies, no cakes, no heavy lifting and no ammonia.
Since sheep give more and better nitrogen, well scattered and not concentrated under a sleeping area, it should be a snap to build a good, composting deep litter. It requires a lot of ventilation at all levels, which I have, and just the addition of all sorts of carbon and some moisture. Creates a thick sponge that wicks moisture to the bottom and leaves the top layer like a forest floor...good smelling, good footing, and a healthy digestor of fecal matter.