Dylan suddenly wakened. He muttered, "What happened?" His 90-year-old wife said nothing. Her side of the bed was empty. He asked, "Where are you?" No answer. He walked around to her side of the bed. She was lying on the carpet. He grabbed her by her thin arms and put her back into bed. A while later, he was wakened again. He said, "I'm going to leave you there this time." She said nothing. After a few minutes, he got up. He lifted her back into bed. He put a pillow on the floor. That should help, he thought. An hour later, he was reawakened. Her side of the bed was empty again. He called 911. Paramedics arrived. One pronounced her dead. After interviewing Dylan, he asked, "Why didn't you call us immediately?" Dylan said, "What for? She's fallen out of bed lots of times. It never killed her before."