Do horses get nightmares?

Had to - mostly for the pun. The answer is - probably. Just like us, horses need REM sleep - dreams - to stay healthy.

Of course, we don't know what our horses dream about, but we do know that horses sometimes seem to panic while asleep and wake up shaking - symptoms similar to night terrors in humans. So, we can assume that our horses, just like us, have at least the occasional bad dream. Probably about being chased...