I put Mom in bed the correct way, it doesn't take long before she is sideways (up against the headboard) in the bed with her feet, sometimes her knees dangling off the side. She almost always sleeps on her stomach so her dangling her knees off the side has to be painful. I am constantly adjusting her, she seems not to understand how to sleep in a bed. Has any one else experienced this? I am thinking she is afraid of falling off but she really doesn't move much, to my knowledge she has only fallen off once and that was a long time ago. I am wondering if I should shove the bed up against the wall, she is sleeping in a double bed. Thanks for your input. She has Alzheimer's/Dementia.