My mother is 91 and lives with my sister and her family. She needs asistance to get around and dozes most of the day, however, once they puther to bed. she doesn't go to sleep and gets out of her bed during the night falling on the floor. We've been lucky with only bruises but she broke her wrist a few months ago and we are worried about a more severe injury in the future. We've tried a child's bed rail and she got all caught in it trying to get out of the bed. She's even getting nasty about bed time. Any suggestions would be greatly appreciated. We've also tried to keep her up during the day as she sits in her chair. She had dementia also.