My mum is having a wedge and new matress delivered to her nursing home- I got the confirmation text by mistake. I havent been able to call the care home yet to find out what this is for but curious if anyone knows why she would need these? She is unable to walk and is in a wheelchair during the day but lately has been sliding down and unable to pull herself back up. Would the wedge likely to be for the chair or is she heading to be bed bound and these are the steps to enable this comfortably x