MEASURE TO FIT: It is highly recommended to take measurements of your existing foam mattress core to ensure a proper fit with the dog bed cover; for additional sizing information, please see the product details below GIVING YOU OPTIONS: You can also use alternative bed fillings such as old clothes, shredded foam, beanbag beads, buckwheat hulls, or feathers; you get to choose what's best for you and your pet PRODUCT DETAILS: Dark Sage; Jumbo, designed to fit 40" x 32" x 4" foam mattress AVAILABLE VARIANTS: The dog bed cover comes in Espresso, Dark Sage, Stone Gray, and Marine Blue; it's also available in Small, Medium, Large, Jumbo, and Jumbo Plus EASY CARE: The dog bed cover is completely machine washable for your convenience; for more specific washing instructions, please refer to the hang tag and/or seam label (if applicable)