Thanks @Grannie G -mum wanders all night round the unit and often she sits with the staff in the middle of the night but she does shuffle up and down the corridors and thats where they found her, she hadn't shouted or made any noise when she fell (or slipped). There's not much that can be done for this part of mums journey other than keep an eye and manage her if she falls.My mother`s bed was lowered at this stage and a mattress put on the floor next to her bed.
I know this might not have been safe if she had tried to stand on the mattress but she didn`t. She tended to roll out of bed and had previously sustained carpet burns.
I don`t know whether or not this would be suitable for your mother @Palerider