A squishy pillow

Last week, Owen wet through his pull-up at night. I washed his sheets and was making his bed before rest time. He came in to "help" and saw his pillow case in a heap on the floor. He poked at it and said, "What the hay? My pillow is all squishy!" It took me a minute to realize he thought his whole pillow was in that heap. He was relieved when I explained that his pillow was in the hallway (where he had taken it) and that heap of fabric was just his pillow case.