Not the cheap clay litter. It's far too dusty and will cause respiratory problems, as well as being breathed in and ingested and then passed on to the snake.
As mentioned, the only safe one is the recycled paper pellets.
The most popular is "Yesterdays News", make sure to get the unscented. The cat litter version is cheapest, but the same product is also sold for small animals and ferrets in a smaller and much more expensive bag.
FWIW, a large bag of YN, about 30 lbs, goes for about $15 so it's not exactly cheap.
Pelleted bedding is the best there is for odor control, especially useful for mice, with the strong male urine smell.
I'm currently using wood stove pellets, $4 for 40 lbs at Menards, a much better value than any other pelleted bedding.