Pet Dreams' Plush Ortho-Bliss pet bed is filled with 100-Percent memory foam clusters--not just a layer of memory foam. Only memory foam can conform to your pet’s body, reducing pressure and relieving pain. Memory foam provides orthopedic support for older dogs, arthritic dogs, and large breeds with joint problems. Ortho-Bliss has been tested and is scientifically proven to support twice the weight of egg crate foam. Our patent pending Interior Channels keep the memory foam clusters under your dog. The cover is removable and 100-Percent wash and dry. The fill is 100-Percent recycled memory foam clusters, making it good for the environment and easy on your wallet. Additional decorative and waterproof covers are sold separately, so you can always have a clean one on hand. Fits 24-Inch, 30-Inch, 36-Inch, 42-Inch and 48-Inch metal dog crates. Give your dog the bed that can improve the quality of his life. Note: This product is compressed for shipping. Please see care instructions in the product details below. CARE INSTRUCTIONS: This orthopedic memory foam bed is compressed for shipping. When you receive the bed: 1.) Remove all the packaging and lay it flat for up to 12 hours for the foam to regain its shape. 2.) Gently shake to separate the clusters. This allows air to circulate between the clusters so they will become full and very squeezable. 3.) For a quicker response, you may place the bed in the dryer on delicate for 5 minutes. If this bed does not become soft and squeezable please contact us and we will be happy to replace it or provide a refund.