So I was woken up in the middle of the night by a strange groaning/breathing sound outside my window. At first I thought it was the cat who often sleeps on my window sill but it was a BIG noise. So I got up for a better look and there was the pony curled up and snoring her head off. What surprised me was the volume. Has anyone else had this and should I do anything about it like with a person? Do horses get sleep apnea?