Yeah, the funny thing about that pic is, I had him 3 years and never once saw him sleeping. He used to have episodes where he'd start falling over standing up. The vet said he was sleep deprived. After several moves, I found a barn where he seemed to settle right in. Sure enough, the very first week he was there, I found him sound asleep and took pics for proof. He hasn't had a sleeping episode since. Guess horse's have places they feel better or worse in just like us.
You just have to see your distance...you don't have to like it.