Just something a lot of people here say but two hides that are identical are recommended. Some snakes will pick the hide they like the most even if they need heat or to cool down and this can cause them harm. Also, I use a tank for both of mine and I use a lamp for the cool side. It does suck out humidity and if you use a higher wattage or a CHE then thats more humidity lost. I have three sides of my tank covered with foam core board and the humidity stays at 50 for both of mine when not in shed. A way you can raise the humidity when it needs to be raised it changing the substrate to one that holds humidity more and/or misting. Now, don't soak it, but misting can help. I mist for mine when they are in shed. Also, most snakes will burrow into the substrate so its best to place the probe on the tank bottom itself under the sub. Some snakes might not burrow, but mine def. do.