Since I am in a quizzing mood: Last night I put Linda to bed (on her side) at 10pm and went to grade. She can roll onto her back on her own, so she does that when she feels like it. When I came back at 12:15am she was "trussed up" in pillows. Still on her left side, there was a pillow-wedge propped behind her back, she had a pillow between her knees, and she was hugging another pillow between her arms. She did not choose to be this way. How did this happen?