I use a combination of all these things really depending on weather and availability and ease of use at the min its nespaper and flece, tend to use wood shavings a bit more in he winter to help insulate more (as well as fleece/ towel) but its a bit messy, mine always get a mountin of hay for food and sleep lol in winter sometimes straw but thats not often i stick to hay mainly, just use whats best for you i say, and ull soon find outwhat ** guineas prefer !