hiding spot

So we made our two guinea pigs a hidey from an oversized piece of waterproof fleece but they're still wanting to and managing to get underneath it. Any advice from fleece owners? We're scared that they're going to eat the waterproofing part and it might do them so e damage. We're thinking...

So I just cleaned out Beans and Toast giving new toys and those pellets that look like their poop. Blehhh. And then this happened. They literally do not care that they was cleaned out they will trash everything :yahoo: