XXL Rebound Foam Insert + Base (No Top Cover)Got an existing ambient lounge dog bed? Upgrade your dog bed by changing the base from bead to rebound foam! Get a special discount by sending us your previous order number & a photo of your ambient lounge dog bed. Note: You cannot insert the foam mattress in the dog bed base that is designed for bean filling. Designed for ultimate support and relaxation, this all foam dog bed is made with 70% high density orthopedic foam and 30% memory foam, ensuring