This is decent fit for a
Pillow top mattress and a 3” memory foam topper….the cover is NOT WATERPROOF! The memory foam I just purchased along with this cover is now garbage because this false information and labeling about this product. If you need this for a bed wetter child, shop for a different brand because you’ll end up with a ruined ￼mattress. This product is garbage. Do not waste your hard earned money on it.