Toothless just had one....
2am : House was quiet (I was reading with only my cree headtorch on - so house was dark) and suddenly Toothless who was sound asleep (went down under his hubba hut onto his nice warmed tiles at 6pm and hadn't moved since , suddenly he was awake and dashed out and scratching at the corner of his monster tub , breathing ready heavy and looking at me .
No BB , just very heavy breathing and obviously wanted my attention, I took the hint and out he came and I placed him on my chest with with t-shirt front drawn over his body only with his head poking out, this very soon settled him.
After about 15mins of snuggles and petting he crawled off me and was wanting to go back to bed , and was asleep with a few minutes of my depositing him infront of his hubba hunt, 1/2 hr later all I can see is his tail and end , he's crawled back in and is now settled again for the night.
I guess he had a scary dream about something, wont be anything that's happened to him since coming here though as a 5 week old as he's never been hurt or had anything scary happen to him (unless he dreams about our very boisterous and noisy 6 yr old grandson - he used to hide from him when he was a really young hatchling.
Of the 4 pet lizards, Toothless is the most active sleeper , he often has dreams , but these usually only involve leg or arm movements to turn arounds or changes in position or tail flicks.
The BTs sleep the sleep of the dead once they nod off for the night, and Peppa generally fights sleep and then hardly moves til she wakes up next day.
The water skinks were much like Toothless , very active sleepers and sometimes had nightmares.