Orchid bark does occasionally get springtails in it. I get them every once in a while, but just change out the bark if they look thick. They havent caused any problems for me so far. Springtails are not blood suckers, they just live in organic matter like bark, so if thats what they are, I wouldnt be too worried. Here is a link, see if these look like what you have.
What's That Bug? Springtails!
That site says they feed on decaying matter and molds, and thrive in moist conditions. It also says there are over 2000 different species, so yours might look a bit different than some of the others pictured.
Freezing in airtight bags, or baking bedding in the oven should kill them.
Also, pay attention to if they are on the snake, or just in the cage. Mites/ticks would be taking the snake as a host.