My Ditto does exactly the same thing -- however, it's more like a loud mournful scream. And it's certainly no small squeak. I've often wondered if he's having a nightmare. I pet him to calm him down and he goes right back to sleep. Wonder if it could be the same thing....I had no idea this could be a syndrome. What is SND? -- Stormy In a message dated 97-09-19 03:37:30 EDT, [log in to unmask] writes: >I have a ferret ( Presley ) who is about 5 mos. old. Every couple of days > when he is sleeping, he screams.... [Posted in FML issue 2070]