upgrade plush ceiling: The fluffy cat cave bed features a plush ceiling design, making it ideal for pets that like to dig holes or nest in corners. This structure helps increase their sense of security. You can also lay a quilt inside to convert it into a donut bed, with the donut shape providing head and neck support while your dog or cat sleeps. Cute donut style and warm comfort: The self warming cat bed resembles a charming donut. It is made with super soft plush fabric to keep pets comfortable and warm in cold weather. Raised edge design adds a sense of security and provides head and neck support, while the ultra soft padding helps relieve joint and muscle discomfort and may ease anxiety. This bed is suitable for indoor cats and makes a thoughtful gift for your furry friends. Easy care and safety: The bed features a non slip bottom to help keep it in place. It is constructed from materials for durability and is machine washable for easy cleaning. The bed undergoes strict quality inspection. If you have any questions, please contact us by email and we will respond within 24 hours. Packaging and setup: The bed is vacuum packed and may arrive flat. When first opened, shake or tap the bed and let it sit for 12 days to regain fluff. The sponge cover shown in the photos is fully opened upright. The compressed sponge cover may take up to two weeks to fully rebound.