Sleep - textured, ultra-soft bedding with extra cushioning to support joints and muscles . Scratch - perfect materials to keep claws healthy Perch - varying heights encourage natural climbing, exploration, and full use of the cat tree. Play - a fun engaging way to stay active and mentally stimulated Pear wood is hard-wearing, dense and splinter resistant Sisal twine is natural, tough and fray resistant Popcorn bubble' cut faux fur for additional padding, warmth and comfort