I used an easybed type product called Just Wood which was also for horses. Found it ideal in my old loft, infact some sections still have a good layer, and its been off the market a couple of years now. When I got the new 'walk in' loft I gave it a try with the ybs, but didnt like it, tryed sand, didnt like that much either, so now with my racing loft 'walk in loft' I scrape the floors and boxes, the old loft, now for stock, still have the wood chip in and will do for the foreseeable, but I dont fancy getting the easybed, think it was about £7 a bag last time I looked, other was £2.50 a bag, same size :-/