They need sun protection
A sphinx cat needs sun protection because it doesn’t have fur to protect it from the sun’s rays. Therefore, especially during the summer, you must use a sunscreen to protect your cat every time you leave the house. Your vet will recommend what kind of sunscreen to use for your cat’s skin type.
“If they go outside, sunscreen or some sort of sun protection is recommended,” says Dr. Shari Brown, a veterinarian in Chesapeake, VA. “It’s generally recommended not to take them outside, especially at the brightest times. Talk to your vet about [sun protection] products and what is best for your cat.”