- Comfortable Cat Bed: Our cat bed for indoor cats uses high-quality polyester fabric and high-elastic cotton filling. It is soft, breathable, skin-friendly, odorless and chemical-free, and it supports the skeleton, keeping your pet warm and comfortable. The calming nest evenly distributes weight to relieve muscle soreness and joint pressure, helping them regain vitality and feel secure. - 2 Ways to Use: The cat bed cave can be used in two ways. In cold weather, the sleeping bag can be turned into a house shape to isolate cold air, creating a private nest that feels warm and secure. In warm weather, you can remove the roof and turn it into an open sofa shape to keep it ventilated and prevent stuffiness. - Removable Double-Sided Mattress: One side is soft plush fabric for warmth and comfort in cold weather; the other side is a breathable cool surface for summer use. The mat is removable for easy cleaning and maintenance, ensuring a clean resting space for your cat. - Suitable Size: Cat houses for indoor cats measure 52x44x32 cm (LxWxH) or 20.5 x 17.32 x 12.6 inches, suitable for cats or dogs weighing up to 11 pounds, such as civets, ragdolls, miniature schnauzers, Pomeranians, poodles, cats, etc. This cat dog cave bed provides an ideal resting environment, especially for kittens who need extra comfort and care, so they can sleep soundly every night and enjoy a quiet time.