So I just expanded my cage from a 2x4 to a 4x4 and one piece of fleece is not wide enough, so I am currently using 2 pieces. My new piggy likes to burrow and is pooping under the fleece, making cleanup take twice as long. I checked out some youtube videos to learn how to sew (home ec class was 20 years ago!) because I want to make fleece flippers. I currently use 2 layers of u-haul pads under my fleece, and would like to continue to do so with the flippers. Is it too difficult for a sewing machine to get through 4 layers of u-haul pads when I sew them together?