Summarize the following:
Pick a mild shampoo that does not have a scent.   Most sphynx experts recommend using a shampoo designed specifically for cats.  Some breeders recommend Johnson’s No More Tears Baby Shampoo. It’s best to fill the sink before you ever bring your cat into the room, particularly if they are not a fan of bathtime.  Double check that the water is warm but not hot. If you can’t use a sink, a large bowl will do. The bathtub will also work, but it might be difficult for you to lean over and wash your cat, and you will use much more water than is really necessary. Turn off any loud radios or televisions that might startle your cat while they bathe.  Remind the other members of your household that it’s bathtime so that they don’t shout, slam doors, or run in and out of the room where you are bathing your cat. It’s important that you not startle your cat while bathing her, because she might scratch you in her alarmed state. She might also completely escape your grasp if she is very scared. This will prevent your cat from slipping and sliding, which can be frightening and cause your cat to panic and either claw at you or try to flee.

Summary:
Select a shampoo for your sphynx. Fill your sink with warm water as high as the cat’s belly. Create a relaxing atmosphere in your house. Put a towel in the bottom of the sink or tub.