My western saddle has real sheepskin lining. It even arrived wrapped in real sheepskin. And yes, I paid a lot of $$ for it so I would never put it on my horse without some sort of protective pad under it unless my horse was squeeky clean and then only to check fit.
I don't mean to sound dumn but whats a numnuh?
"Until one has loved an animal, part of one's soul remains unawakened..."
- Anatole France