I noted at the beginning of our trip that many Koreans sleep either on a cotton floor mat or on the wooden plank they put in place of what we might expect as a box springs.  I've managed bookends for this experience in my sleeping arrangements.  I began on a plank of a bed, and I've finished with the pad on the floor.  I fold everything - pad, pad cover and comforter - in half and sleep like I'm in a sleeping bag.  Whatever...I sleep comfortably.