1,162. Shaatnez Mattresses and Blankets
176:4 Even if ten mattresses are stacked one on the other, if the lowest one is shaatnez, it is prohibited to lie on the top one.
176:5 If a large garment has a shaatnez at one end of it, one may not cover himself even with the other end. This is the case even if the end with the shaatnez is resting on the ground.