I have mentioned Anthony's tendency to pull the covers off his bed, either before going to sleep or when he wakes up. He has begun to do that every night lately, so I thought that perhaps I could save myself some trouble by not tucking the sheet in or replacing the blankets. That seemed to work well enough the first night, but apparently he feels the need to pull something off. Yesterday I found both the bottom sheet and the plastic protective--against accidents--sheet underneath pulled off the bed. Both are of a fitted design, and the latter apparently didn't come up as easily as he hoped. We now have a plastic sheet that hugs only three of the four corners of the mattress.