Oh, wow, I don't know, had never thought of that. I think I was too young to understand though, to imagine that ("sickness")and later put it together. I guess I'm a little surprised I don't have any troubles with sleep, if my mother was in bed a lot (probably toward the end). I don't have any problems in that area. The only symptoms I know she had was grand mal seizures and, when she got home from the hospital (she walked into the house so wasn't "in bed" then), was aphasia and I get my words hopelessly tangled when I'm anxious or excited.