We may insulate [hot food] with pelts, and we may move them; with wool shearings, but we may not move them. What should one do? He removes the lid, and they fall. R’ Elazar ben Azaryah says: He tilts the box on its side and removes [the food], lest he remove [the pot] and be unable to replace [it]. But, the Sages say: He may remove [it] and replace [it]. If he did not cover it when it was yet day, he may not cover it after dark. If he covered it and it became uncovered, he may cover it. One may fill a bottle and place it under a cushion or under a bolster.