Lucky Reptile Desert Bedding Snow White is a specially developed terrarium substrate for desert and savanna terrariums. In nature, very few animals live on sand – in fact, many actively avoid it. Desert Bedding replicates the substrate found in dry regions and has a high clay content, allowing animals to create burrows just like in the wild. Additionally, moisture is retained in the lower layers, which is important since many desert reptiles, such as spiny-tailed iguanas, can absorb moisture through their skin. Lucky Reptile Desert Bedding is also an excellent breeding substrate and can be used with heating mats.