If this is photoshopped, then the person deserves a clap. I can't spot anything on initial inspection that would make me think he's not having a nap next to some cheetahs. Awesome. I've seen this with "Lion-Whisperers" but never with Cheetahs.
It is not unheard of. Cheetahs are not _that_ aggressive compared to other large cats. A German guy called Matto Barfuss also does that kind of thing. ...I still wouldn't recommend it.
Part of the problem with things like sleeping with the Cheetahs is it only has to go wrong once for it to be a horrible idea.