Yep, try other hides as discussed in your other thread. You can buy cypress mulch online, at plant nurseries, and at some pet stores. Other means of keeping humidity up include housing in Rubbermaid or Sterilite containers, adding non-toxic live plants to the enclosure, adding a larger water dish and/or switching to one made of heat-conducting material (glass, ceramic, stone, etc., not plastic), misting daily, adding a storebought or home-built mister or humidifier to the enclosure, or using humidi-mats. There are other ways, too, if you're creative enough. You do have to be careful when using a moisture-retaining substrate like cypress mulch not to keep it too moist as that will cause scale rot.