Cheetahs sleep wherever they like and are typically not concerned about sleeping out in the open as long as the spot is shady. The cheetah knows how fast it is and it knows that it can quickly escape should there be a threat.
The predators that the cheetah has to watch out for are primarily leopards, hyenas and lions. Though the cheetah might be able to attack these animals and win, the cheetah will run away. Cheetahs are not interested in fighting other strong animals. When the cheetah is not sleeping 16 to 18 hours each day, it is hunting or watching over its territory, as cheetahs are very territorial animals. Most female cheetahs choose to live on their own while males may live in small groups.
The cheetah is an endangered animal. In the last 100 years, the cheetah population has gone from 100,000 cheetahs in the wild to less than 12,500 cheetahs in the wild as of 2015. The reason for these numbers is that poachers are killing cheetahs for their beautiful coats and industrial developments are tearing down the cheetah's habitat. Conservations and zoos are doing their best to raise cheetahs in captivity to build population size, to educate the public about the cheetah and their endangerment and to find ways to stop poaching and habitat destruction.