It would make it just that much harder to find the cat during waking hours.
Why? Lost your sense of smell?
@FrayedBear Our cats only have a light scent of fresh rain.
@snytiger6 Even their vomit and poo?
@FrayedBear Well, that would be the same with most pets. Our 3 cats prefer to use the "outdoor" litter box, although they do have an indoor option.
It would have to have a hinged top so you could lift the platform and mattress up to remove all the dead mice, hair balls, toys, and any other deposits. And to let the dumber kitties out when they get lost and start yowling for help.
If You have more than one they would be fighting under the Bad all night .
Who cares so long as it's not under the bed?