The terrarium liner is a plush carpet-style substrate designed to line the floor of a reptile enclosure in place of loose bedding. Owners roll out the material and trim it with scissors to match the exact dimensions of their tank. The fabric is absorbent and non-abrasive, giving reptiles a comfortable surface that will not irritate sensitive feet, and because it cannot be swallowed it offers a safer option for juvenile reptiles that may accidentally ingest bedding while feeding. Each liner is treated with a biodegradable enzyme that helps minimize odors building up in the habitat. When soiled, the liner can be removed and rinsed clean with cold tap water for repeated reuse rather than being thrown away. It ships as a single carpet roll sized to fit specific terrarium dimensions.