Yes, they do. Raccoons are nocturnal creatures, meaning they are most active at night. This is why they often seek out roofs as safe places to sleep while the sun is down.  Raccoons are excellent climbers and can easily climb up onto roofs to sleep. They may also use the roof as a shelter during the day, especially when it rains or boils outside.  When raccoons sleep on your roof, you may hear them moving around, as they do not stay in one place long.