For anyone that's caring for a cat that is losing it's ability to walk, my little guy finds that the cardboard flat that a case of wet cat food comes in, and the lids that Chewy puts over flats of cat food for shipping, work really well for helping move around. The sides are low enough that he can get out if he needs to, but are sturdy enough to help him move and re-position himself in his weakened state.
Don't forget that illness is never a straight line - continue to offer food and water until the end.
Don't forget that illness is never a straight line - continue to offer food and water until the end.