My 6 month old Guinea pig, was being very adventurous last night and kept burrowing under my c&c cage blanket, I specifically clip it to the sides as I dont want them getting down there and eating the puppy pads underneath, he was having a blast until I took him out lol, I gave him a large cut of blanket and now hes happy and buries himself in that, does anyone else's guinea pig do this? is it safe for him? thanks