Ringo and his habits

[SkyesRingo]

Hi all! I've had Ringo now for a little over 2 weeks, and I'm curious to know if some of his behaviors are normal.

First off, he rattles his tail? There are times when we're holding him that he'll just start rattling his tail and it just makes us wonder what he's doing.

Second, I've seen him scratch himself on his rock hide a couple of times, so do snakes get itchy?

Another thing I've noticed, he'll try to fly off my hand O_o by this I mean he suddenly straightens his body and moves super fast in one direction, when all I've done is simply let him go on my arms and hands, fingers spread, and not touched him (I let him decide if he wants to go to a new area or not first, if that makes sense)

Ringo ALSO seems to sleep almost 24/7! There have only been about 4 times I've witnessed him moving about his cage or in his tree.

So if anyone knows what he's doing, I'd definitely like to know and why!
Thanks

P.S. I recently watched him drink water and it was adorable!