Hi, we’ve had our 2 baby girl guinea pigs for a week (bought for our 2 children) and are novices to piggie ownership. We’ve read books, read online but I’m still not sure how much sawdust/hay we should be putting in their hutch. We’ve bought a large, 2 storey hutch and they seem to spend most if their time in the section with the wooden door, ie where we can’t see them. We have sawdust down all over but how much hay do I put in their “bedroom”? Should it be for them to keep warm in only? We also have a hay dispenser thing attached to the outside for eating as well as 2 food bowls. Thanks in advance.