The sphynx cat. Some get dirty faster than others. Try to see how long you can wait before your baby starts looking oily/dirty and bathe then – for some it can be a week for others a month. Most sphynx owners seem to do paws and ears once a week and faces/eyes every day and baths weekly or as needed.
Generally the more naked and the more wrinkly they are the dirtier they get, the pinkies also seem dirtier but maybe it’s just more visible. It also depends on how well your cat handles baths, some make it a huge drama with a lot of struggles so it’s easier to use wipes to keep them clean as long as you can. But yes – the less often you can do it without them getting gross the better for their skin.