I use reptibark and i have a humidity hide for my bp with spagnum moss inside of it, that hide does not dry out for quite a few days, i like it becaue that way the bp can choose if it wants higher humidity or not by going in/out the hide (this can also helps prevent scale rot) but you can also just mix spagnum moss into the reptibark which also works great! I find that spagnum moss and reptibark does not stick to the snakes food either so thats a benefit :)