I'd LIKE to think they dream but it's hard to know...it would sure be an indication if they'd do like dogs do- twitch & make various motions that suggest they're
dreaming about doing stuff, but I can't say I've ever seen a sleeping snake do any such things- have any of you???
First, it's hard to tell IF & WHEN they're sleeping, but even if you assume they are, I've never seen them do anything to suggest dreams, like tail twitching or
moving their scutes. I don't think this proves that they DON'T dream either though: maybe there are mechanisms that keep them still while sleeping, so they
are harder to find by predators? (ie. maybe the ones that sleep totally still survived to breed whereas the ones that gave themselves away got wiped out?)
I DO wish they'd find a way to tell us though...'cause now I want to know.