I use Reptile Prime bedding and it's awesome. It's a little pricey but well worth it imo. I also think humidity is sometimes an overblown issue. Hydration is the key. As long as the snake has continuous access to fresh water you should be fine. My relative humidity is running about 30% right now. This week my boa, carpet and scrub have all had perfect sheds and none of my snakes have ever had an RI or any other health issues.