I currently use MANY binder clips and a tile on each level to keep the fleece from being burrowed under, but my five girls STILL destroy my fleece. I'm a poor college student I can't keep buying new fleece every week haha! If anybody has any suggestions they'd be much appreciated! My current thought is maybe getting plexi glass cut to the same size as the level pans, and use them instead. I think that would allow the fleece to be wrapped tighter, and it wouldn't have that lip/edge which seems to be the biggest issue.